China Largest Manufacturer factory sales Zinc Sulphate CAS 7733-02-0 CAS NO.7733-02-0

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Zinc sulphate Basic information Description Uses Indications Production Methods Product Name: Zinc sulphate Synonyms: ai3-03967;Bonazen;Bufopto zinc sulfate;ZincSulphate,>90%;ZincSulphate,>98%;zinc sulfate solution;ZINC(II)SULPHATE;Zinksulfat CAS: 7733-02-0 MF: O4SZn MW: 161.45 EINECS: 231-793-3 Product Categories: Volumetric Solutions;BioUltraProtein Structural Analysis;Molecular Biology;Molecular Biology Reagents;Optimization Reagents;X-Ray Crystallography;Complexometric Solutions (IDRANAL)Volumetric Solutions;Complexometric Titration (IDRANAL);S - Z;Salt Solutions;Titration;Complexometric Concentrates (IDRANAL)Titration;Concentrates (e.g. FIXANAL);Salt Concentrates;Inorganics Mol File: 7733-02-0.mol   Zinc sulphate Chemical Properties Melting point  100°C Boiling point  105°C (estimate) density  1.31 g/mL at 20 °C storage temp.  Store at +15°C to +25°C. solubility  H2O: soluble form  Liquid color  Colorless PH 4.0±0.5 Water Solubility  Soluble λmax λ: 260 nm Amax: <0.02 λ: 280 nm Amax: <0.02 Merck  14,10159 CAS DataBase Reference 7733-02-0(CAS DataBase Reference) NIST Chemistry Reference Zinc sulfate(7733-02-0) EPA Substance Registry System Zinc sulfate (7733-02-0)   Safety Information Hazard Codes  Xn,N,Xi Risk Statements  52/53-50/53-41-22-51/53 Safety Statements  61-39-26-60 RIDADR  UN 3082 9/PG 3 WGK Germany  3 RTECS  ZH5260000 TSCA  Yes HS Code  2833 29 20 HazardClass  9 PackingGroup  III Hazardous Substances Data 7733-02-0(Hazardous Substances Data) MSDS Information Provider Language Zinc sulphate English SigmaAldrich English ALFA English   Zinc sulphate Usage And Synthesis Description Zinc sulfate appears as colorless or white rhombic crystals or powder at room temperature. It has convergence property and is easily soluble in water with its aqueous solution being acidic. It is slightly soluble in ethanol and glycerol. Pure zinc sulfate can be stored in the air for a long time without turning yellow. It can lose water to become white powder when placed in dry air. There are various kinds of hydrates: in the range of 0-39 ° C, its stable hydrate balanced with aqueous phase is zinc sulfate heptahydrate; in the range of 39-60 ° C, it is hexahydrate zinc sulfate. At the range of 60-100 °C, it will become zinc sulfate monohydrate. When being heated to 280 °C, various kinds of hydrate will completely lose water with decomposition into zinc sulfate at 680 °C and further decomposition at above 750 ° C and finally decomposition into zinc oxide and sulfur trioxide at about 930 °C. ZnSO4 • 7H2O can form mixed crystal with MSO4 • 7H2O (M = Mg, Fe, Mn, Co, Ni) within a certain range. It is mainly used for the preparation of raw materials of pigment lithopone, zinc barium and other zinc compounds. It also has various kinds of applications such as animal nutrition upon zinc deficiency, animal feed additives, crop zinc fertilizer (trace element fertilizer), important materials of artificial fiber, electrolyte solution upon electrolytic production of zinc metal, mordant in the textile industry, pharmaceutical emetic agents, astringents, fungicides and wood and leather preservatives. It can be derived from the reaction between zinc or zinc oxide and sulfuric acid or from the baking of sphalerite in the baking furnace followed by extraction and refining. Uses Zinc sulfate occurs in nature as the mineral, zinkosite. The heptahydrate, ZnSO4•7H2O is the mineral, goslarite. The salt is used as a mordant in calico-printing, in making rayon, in preserving wood, in animal feeds, in electroplating, and in preparing many zinc compounds. Indications Convergence preservatives: as eye drops, can be used for the treatment of conjunctivitis, trachoma, nasal blepharitis and so on. Oral stimulation of gastric mucosa can cause reflex vomiting. It can be used as emetic drug, now less used. It can be used for the treatment of zinc deficiency: zinc is the ingredient of many important enzymes in vivo such as carbonic anhydrase and alkaline phosphatase, being an indispensable trace element in the human body. Supplementation of zinc can be used for treating zinc deficiency such as dwarfism, acral dermatitis and zinc deficiency caused by long-term vein nutritional deficiency and so on. It can be used for the treatment of zinc deficiency related diseases: such as acne vulgaris, skin ulcers (venous, arterial, leprosy), psoriasis, seborrheic dermatitis, chronic eczema, oral ulcers, hair loss and smell taste disorders. It can be used as mordant for printing and dyeing, wood preservative, bleaching agent for papermaking, also used in medicine, artificial fiber, electrolysis, electroplating, and pesticide as well as zinc salt production. Production Methods Zinc sulfate is produced as an intermediate in recovering zinc from mineral zinc blende, ZnS (see Zinc, Recovery). The mineral is roasted at about 1,000°C to form zinc oxide and sulfur dioxide which, on prolonged heating in excess air, converts to zinc sulfate: 2ZnS + 3O2 → 2ZnO + 2SO2 992 ZINC SULFATE2ZnO + 2SO2 + O2 → 2ZnSO4 In the zinc recovery process, roasted products are leached with sulfuric acid, whereupon zinc oxide is converted to sulfate. ZnO + H2SO4 → ZnSO4 + H2O Also, zinc sulfate can be prepared by reacting metallic zinc with dilute sulfuric acid followed by evaporation and crystallization: Zn + H2SO4 → ZnSO4 + H2 Chemical Properties used in zinc plating and as a mordant [KIR84] Physical properties The anhydrous sulfate is a colorless rhombohedral crystalline solid; refractive index 1.658; density 3.54 g/cm3; decomposes at 600°C; soluble in water, methanol, and glycerol. The heptahydrate, ZnSO4 7H2O, is a colorless crystalline solid; metallic taste; rhombohedral crystals; effloresces; refractive index 1.457; density 1.957 g/cm3 at 25°C; melts at 100°C; loses all its water molecules at 280°C; decomposes above 500°C; very soluble in water, 96.5 g/100mL at 20°C; soluble in glycerol, 40 g/100 mL; insoluble in alcohol The hexahydrate, ZnSO4 6H2O constitutes colorless monoclinic or tetragonal crystals; density 2.072 g/cm3at 15°C; loses five water molecules at 70°C; soluble in water. Uses Zinc sulfate solution has been used as a component in media for in vitro hyphal growth assays. It has also been used as a supplement in the media along with isopropyl β-D-1-thiogalactopyranoside (IPTG), while expressing zinc containing proteins. Uses The principal commercial preparation of zinc sulfate is the monohydrate granular (36% of zinc) used as a fertilizer. It is also a component of spinning bath in the production of rayon, carbamate fungicides, zinc plating baths, and ophthalmic solutions. Zinc sulfate is used as an accelerating agent in dental impression material, froth flotation agent, and animal feed additive. Uses Used in conjunction with barium hydroxide to deproteinize via barium sulfate precipitation whole blood, plasma, or serum samples which are colored or turbid. The resulting supernatant or filtrate is then available for subsequent analysis of glucose by Somogi-Nelson method. Definition zinc sulphate: A white crystalline water-soluble compound made by heating zinc sulphide ore in air and dissolving out and recrystallizing the sulphate. The common form is the heptahydrate, ZnSO4.7H2O; r.d. 1.9. This loses water above 30°C to give the hexahydrate and more water is lost above 70°C to form the monohydrate. The anhydrous salt forms at 280°C and this decomposes above 500°C. The compound, which was formerly called white vitriol, is used as a mordant and as a styptic (to check bleeding). Production Methods Zinc sulfate is produced from side streams of electrolytic zinc manufacture. The main source of secondary zinc for zinc sulfate production is galvanizer residues. ZnSO4 is available as the mono-, hexa- and heptahydrates with zinc contents of 36%, 24%, and 22%, respectively. Definition ChEBI: A metal sulfate compound having zinc(2+) as the counterion. General Description Anhydrous Zinc sulphate is a colorless crystalline solid. Zinc sulphate is also obtained as a hexahydrate, ZnSO4.6H2O, and as a heptahydrate ZnSO4.7H2O. All forms are soluble in water. All are noncombustible. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. Zinc sulphate is used in the production of rayon, as a feed supplement, used to obtaine lectrolyte zinc, in printing textiles and to make lithopone, to impregnate wood and hides,as an additive to spinning baths for production of synthetic silks, in electroplating, and in animal feeds. Air & Water Reactions Water soluble. Efflorescent in air. Aqueous solutions are acidic. Reactivity Profile Acidic salts, such as Zinc sulphate, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions. Health Hazard Inhalation of dust causes irritation of nose and throat. Ingestion can cause irritation or corrosion of the alimentary tract. Contact with eyes or skin causes irritation. Agricultural Uses White vitriol is another name for zinc sulphate heptahydrate, and is a commonly used zinc salt. It is widely used as a fertilizer for overcoming zinc deficiency. Agricultural Uses Zinc sulphate is a white, crystalline, water-soluble compound made by heating zinc sulphide ore in air and dissolving the sulphate formed, and crystallizing it. Zinc sulphate is the most common zinc salt (about 35% of zinc) used for preventing zinc deficiency in plants. It is sprayed on the foliage as a water solution or added in large quantities directly to the soil. Industrial uses Ferro sulfate (FeSO4·7H2O) is a crystalline substance greenish in color, with a specific gravity of 1.899. Ferro sulfate is obtained from various solutions using a vacuum crystallization method. Ferro sulfate has been used as a depressant and co-depressant in the following applications: (a) depression of sphalerite together with cyanide , (b) depression of fine molybdenite also with cyanide, and (c) in copper/lead separation using a method, based on copper depression by cyanide. Biochem/physiol Actions Zinc sulfate solution is as potent as formalin. This chemical is mainly used to treat footrot. It may also be used to treat acute bronchiolitis. Safety Profile Poison by ingestion, intraperitoneal, subcutaneous, and intravenous routes. Human systemic effects by ingestion: acute pulmonary edema, agranulocytosis, blood pressure decrease, diarrhea and other gastrointestinal changes, hypermotility, increased pulse rate without blood pressure decrease, level changes for metals other than Na/K/Fe/Ca/P/Cl, microcytosis with or without anemia, normocytic anemia. Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental tumorigenic data. Human mutation data reported. An eye irritant. When heated to decomposition it emits toxic fumes of SOx and ZnO. See also SULFATES and ZINC COMPOUNDS. Purification Methods Crystallise it from aqueous EtOH or dilute H2SO4 below 39o when it forms the heptahydrate, and between 39o and 70o it forms the hexahydrate, and above 70o the monohydrate is stable. The anhydrous salt is obtained from the hydrates by heating at 280o or lower temperatures in a current of dry air. It decomposes to ZnO and SO2 at 767o. The solubility of the heptahydrate in H2O is 5.88% at 0o, 61.92% at 30o, 66.61% at 35o and 70.05% at 39o.   Zinc sulphate Preparation Products And Raw materials Raw materials Sulfuric acid-->Potassium permanganate-->Zinc oxide Preparation Products Zinc oxide-->Mixed and compound fertilizer-->Calcium phosphate monobasic-->Compound fertilizer-->Lithopone-->Zinc sulfate heptahydrate-->Inhibitor-->Mancozeb-->Isobutyronitrile-->Foliar-fertilizer-->Zinc hydroxide-->corrosion inhibitor PBTCA-type-->Zinc carbonate-->Zineb-->Bone glue-->Bleomycin sulfate-->Zinc borate-->Zinc stearate-->Zinc phosphate-->Scale inhibitor-->Pigment yellow 37 (C.I. 77199)-->Kanamycin sulfate-->Zinc sulfide-->Zinc dimethyldithiocarbamate-->ZINC CYANIDE-->COBALT BLUE-->ZINC BORATE 3.5 HYDRATE-->Ethyl ziram-->Ethylhexanoic acid zinc salt-->Zinc ethylphenyl dithiocarbamate-->FLURITHROMYCIN-->Zinc methionine sulfate-->corrosion inhibitor NJ-304

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Leader Biochemical Group is a large leader incorporated industry manufacturers and suppliers of advanced refined raw materials From the year of 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories with shares and subordinates.We focus on manufacture Pharm & chemicals, functional active ingredients, nutritional Ingredients, health care products, cosmetics, pharmaceutical and refined feed, oil, natural plant ingredients industries to provide top quality of GMP standards products.All the invested factories' product lines cover API and intermediates, vitamins, amino acids, plant extracts, daily chemical products, cosmetics raw materials, nutrition and health care products, food additives, feed additives, essential oil products, fine chemical products and agricultural chemical raw materials And flavors and fragrances. Especially in the field of vitamins, amino acids, pharmaceutical raw materials and cosmetic raw materials, we have more than 20 years of production and sales experience. All products meet the requirements of high international export standards and have been recognized by customers all over the world. Our manufacture basement & R&D center located in National Aerospace Economic & Technical Development Zone Xi`an Shaanxi China. Now not only relying on self-cultivation and development as well as maintains good cooperative relations with many famous research institutes and universities in China. Now, we have closely cooperation with Shanghai Institute of Organic Chemistry of Chinese Academy of Science, Beijing Institute of Material Medical of Chinese Academy of Medical Science, China Pharmaceutical University, Zhejiang University. Closely cooperation with them not only integrating Science and technology resources, but also increasing the R&D speed and improving our R&D power. Offering Powerful Tech supporting Platform for group development. Keep serve the manufacture and the market as the R&D central task, focus on the technical research.  Now there are 3 technology R & D platforms including biological extract, microorganism fermentation and chemical synthesis, and can independently research and develop kinds of difficult APIs and pharmaceutical intermediates. With the strong support of China State Institute of Pharmaceutical Industry (hereinafter short for CSIPI), earlier known as Shanghai Institute of Pharmaceutical Industry (SIPI), we have unique advantages in the R & D and industrialization of high-grade, precision and advanced products.  Now our Group technical force is abundant, existing staff more that 1000 people, senior professional and technical staff accounted for more than 50% of the total number of employees, including 15 PhD research and development personnel, 5 master′ S degree in technical and management personnel 9 people. We have advanced equipment like fermentation equipment and technology also extraction, isolation, purification, synthesis with rich production experience and strict quality control system, According to the GMP required, quickly transforming the R&D results to industrial production in time, it is our advantages and our products are exported to North and South America, Europe, Middle East, Africa, and other five continents and scale the forefront in the nation, won good international reputation.  We believe only good quality can bring good cooperation, quality is our key spirit during our production, we are warmly welcome clients and partner from all over the world contact us for everlasting cooperation, Leader will be your strong, sincere and reliable partner in China.

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Zinc sulphate Basic information Description Uses Indications Production Methods Product Name: Zinc sulphate Synonyms: ai3-03967;Bonazen;Bufopto zinc sulfate;ZincSulphate,>90%;ZincSulphate,>98%;zinc sulfate solution;ZINC(II)SULPHATE;Zinksulfat CAS: 7733-02-0 MF: O4SZn MW: 161.45 EINECS: 231-793-3 Product Categories: Volumetric Solutions;BioUltraProtein Structural Analysis;Molecular Biology;Molecular Biology Reagents;Optimization Reagents;X-Ray Crystallography;Complexometric Solutions (IDRANAL)Volumetric Solutions;Complexometric Titration (IDRANAL);S - Z;Salt Solutions;Titration;Complexometric Concentrates (IDRANAL)Titration;Concentrates (e.g. FIXANAL);Salt Concentrates;Inorganics Mol File: 7733-02-0.mol   Zinc sulphate Chemical Properties Melting point  100°C Boiling point  105°C (estimate) density  1.31 g/mL at 20 °C storage temp.  Store at +15°C to +25°C. solubility  H2O: soluble form  Liquid color  Colorless PH 4.0±0.5 Water Solubility  Soluble λmax λ: 260 nm Amax: <0.02 λ: 280 nm Amax: <0.02 Merck  14,10159 CAS DataBase Reference 7733-02-0(CAS DataBase Reference) NIST Chemistry Reference Zinc sulfate(7733-02-0) EPA Substance Registry System Zinc sulfate (7733-02-0)   Safety Information Hazard Codes  Xn,N,Xi Risk Statements  52/53-50/53-41-22-51/53 Safety Statements  61-39-26-60 RIDADR  UN 3082 9/PG 3 WGK Germany  3 RTECS  ZH5260000 TSCA  Yes HS Code  2833 29 20 HazardClass  9 PackingGroup  III Hazardous Substances Data 7733-02-0(Hazardous Substances Data) MSDS Information Provider Language Zinc sulphate English SigmaAldrich English ALFA English   Zinc sulphate Usage And Synthesis Description Zinc sulfate appears as colorless or white rhombic crystals or powder at room temperature. It has convergence property and is easily soluble in water with its aqueous solution being acidic. It is slightly soluble in ethanol and glycerol. Pure zinc sulfate can be stored in the air for a long time without turning yellow. It can lose water to become white powder when placed in dry air. There are various kinds of hydrates: in the range of 0-39 ° C, its stable hydrate balanced with aqueous phase is zinc sulfate heptahydrate; in the range of 39-60 ° C, it is hexahydrate zinc sulfate. At the range of 60-100 °C, it will become zinc sulfate monohydrate. When being heated to 280 °C, various kinds of hydrate will completely lose water with decomposition into zinc sulfate at 680 °C and further decomposition at above 750 ° C and finally decomposition into zinc oxide and sulfur trioxide at about 930 °C. ZnSO4 • 7H2O can form mixed crystal with MSO4 • 7H2O (M = Mg, Fe, Mn, Co, Ni) within a certain range. It is mainly used for the preparation of raw materials of pigment lithopone, zinc barium and other zinc compounds. It also has various kinds of applications such as animal nutrition upon zinc deficiency, animal feed additives, crop zinc fertilizer (trace element fertilizer), important materials of artificial fiber, electrolyte solution upon electrolytic production of zinc metal, mordant in the textile industry, pharmaceutical emetic agents, astringents, fungicides and wood and leather preservatives. It can be derived from the reaction between zinc or zinc oxide and sulfuric acid or from the baking of sphalerite in the baking furnace followed by extraction and refining. Uses Zinc sulfate occurs in nature as the mineral, zinkosite. The heptahydrate, ZnSO4•7H2O is the mineral, goslarite. The salt is used as a mordant in calico-printing, in making rayon, in preserving wood, in animal feeds, in electroplating, and in preparing many zinc compounds. Indications Convergence preservatives: as eye drops, can be used for the treatment of conjunctivitis, trachoma, nasal blepharitis and so on. Oral stimulation of gastric mucosa can cause reflex vomiting. It can be used as emetic drug, now less used. It can be used for the treatment of zinc deficiency: zinc is the ingredient of many important enzymes in vivo such as carbonic anhydrase and alkaline phosphatase, being an indispensable trace element in the human body. Supplementation of zinc can be used for treating zinc deficiency such as dwarfism, acral dermatitis and zinc deficiency caused by long-term vein nutritional deficiency and so on. It can be used for the treatment of zinc deficiency related diseases: such as acne vulgaris, skin ulcers (venous, arterial, leprosy), psoriasis, seborrheic dermatitis, chronic eczema, oral ulcers, hair loss and smell taste disorders. It can be used as mordant for printing and dyeing, wood preservative, bleaching agent for papermaking, also used in medicine, artificial fiber, electrolysis, electroplating, and pesticide as well as zinc salt production. Production Methods Zinc sulfate is produced as an intermediate in recovering zinc from mineral zinc blende, ZnS (see Zinc, Recovery). The mineral is roasted at about 1,000°C to form zinc oxide and sulfur dioxide which, on prolonged heating in excess air, converts to zinc sulfate: 2ZnS + 3O2 → 2ZnO + 2SO2 992 ZINC SULFATE2ZnO + 2SO2 + O2 → 2ZnSO4 In the zinc recovery process, roasted products are leached with sulfuric acid, whereupon zinc oxide is converted to sulfate. ZnO + H2SO4 → ZnSO4 + H2O Also, zinc sulfate can be prepared by reacting metallic zinc with dilute sulfuric acid followed by evaporation and crystallization: Zn + H2SO4 → ZnSO4 + H2 Chemical Properties used in zinc plating and as a mordant [KIR84] Physical properties The anhydrous sulfate is a colorless rhombohedral crystalline solid; refractive index 1.658; density 3.54 g/cm3; decomposes at 600°C; soluble in water, methanol, and glycerol. The heptahydrate, ZnSO4 7H2O, is a colorless crystalline solid; metallic taste; rhombohedral crystals; effloresces; refractive index 1.457; density 1.957 g/cm3 at 25°C; melts at 100°C; loses all its water molecules at 280°C; decomposes above 500°C; very soluble in water, 96.5 g/100mL at 20°C; soluble in glycerol, 40 g/100 mL; insoluble in alcohol The hexahydrate, ZnSO4 6H2O constitutes colorless monoclinic or tetragonal crystals; density 2.072 g/cm3at 15°C; loses five water molecules at 70°C; soluble in water. Uses Zinc sulfate solution has been used as a component in media for in vitro hyphal growth assays. It has also been used as a supplement in the media along with isopropyl β-D-1-thiogalactopyranoside (IPTG), while expressing zinc containing proteins. Uses The principal commercial preparation of zinc sulfate is the monohydrate granular (36% of zinc) used as a fertilizer. It is also a component of spinning bath in the production of rayon, carbamate fungicides, zinc plating baths, and ophthalmic solutions. Zinc sulfate is used as an accelerating agent in dental impression material, froth flotation agent, and animal feed additive. Uses Used in conjunction with barium hydroxide to deproteinize via barium sulfate precipitation whole blood, plasma, or serum samples which are colored or turbid. The resulting supernatant or filtrate is then available for subsequent analysis of glucose by Somogi-Nelson method. Definition zinc sulphate: A white crystalline water-soluble compound made by heating zinc sulphide ore in air and dissolving out and recrystallizing the sulphate. The common form is the heptahydrate, ZnSO4.7H2O; r.d. 1.9. This loses water above 30°C to give the hexahydrate and more water is lost above 70°C to form the monohydrate. The anhydrous salt forms at 280°C and this decomposes above 500°C. The compound, which was formerly called white vitriol, is used as a mordant and as a styptic (to check bleeding). Production Methods Zinc sulfate is produced from side streams of electrolytic zinc manufacture. The main source of secondary zinc for zinc sulfate production is galvanizer residues. ZnSO4 is available as the mono-, hexa- and heptahydrates with zinc contents of 36%, 24%, and 22%, respectively. Definition ChEBI: A metal sulfate compound having zinc(2+) as the counterion. General Description Anhydrous Zinc sulphate is a colorless crystalline solid. Zinc sulphate is also obtained as a hexahydrate, ZnSO4.6H2O, and as a heptahydrate ZnSO4.7H2O. All forms are soluble in water. All are noncombustible. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. Zinc sulphate is used in the production of rayon, as a feed supplement, used to obtaine lectrolyte zinc, in printing textiles and to make lithopone, to impregnate wood and hides,as an additive to spinning baths for production of synthetic silks, in electroplating, and in animal feeds. Air & Water Reactions Water soluble. Efflorescent in air. Aqueous solutions are acidic. Reactivity Profile Acidic salts, such as Zinc sulphate, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions. Health Hazard Inhalation of dust causes irritation of nose and throat. Ingestion can cause irritation or corrosion of the alimentary tract. Contact with eyes or skin causes irritation. Agricultural Uses White vitriol is another name for zinc sulphate heptahydrate, and is a commonly used zinc salt. It is widely used as a fertilizer for overcoming zinc deficiency. Agricultural Uses Zinc sulphate is a white, crystalline, water-soluble compound made by heating zinc sulphide ore in air and dissolving the sulphate formed, and crystallizing it. Zinc sulphate is the most common zinc salt (about 35% of zinc) used for preventing zinc deficiency in plants. It is sprayed on the foliage as a water solution or added in large quantities directly to the soil. Industrial uses Ferro sulfate (FeSO4·7H2O) is a crystalline substance greenish in color, with a specific gravity of 1.899. Ferro sulfate is obtained from various solutions using a vacuum crystallization method. Ferro sulfate has been used as a depressant and co-depressant in the following applications: (a) depression of sphalerite together with cyanide , (b) depression of fine molybdenite also with cyanide, and (c) in copper/lead separation using a method, based on copper depression by cyanide. Biochem/physiol Actions Zinc sulfate solution is as potent as formalin. This chemical is mainly used to treat footrot. It may also be used to treat acute bronchiolitis. Safety Profile Poison by ingestion, intraperitoneal, subcutaneous, and intravenous routes. Human systemic effects by ingestion: acute pulmonary edema, agranulocytosis, blood pressure decrease, diarrhea and other gastrointestinal changes, hypermotility, increased pulse rate without blood pressure decrease, level changes for metals other than Na/K/Fe/Ca/P/Cl, microcytosis with or without anemia, normocytic anemia. Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental tumorigenic data. Human mutation data reported. An eye irritant. When heated to decomposition it emits toxic fumes of SOx and ZnO. See also SULFATES and ZINC COMPOUNDS. Purification Methods Crystallise it from aqueous EtOH or dilute H2SO4 below 39o when it forms the heptahydrate, and between 39o and 70o it forms the hexahydrate, and above 70o the monohydrate is stable. The anhydrous salt is obtained from the hydrates by heating at 280o or lower temperatures in a current of dry air. It decomposes to ZnO and SO2 at 767o. The solubility of the heptahydrate in H2O is 5.88% at 0o, 61.92% at 30o, 66.61% at 35o and 70.05% at 39o.   Zinc sulphate Preparation Products And Raw materials Raw materials Sulfuric acid-->Potassium permanganate-->Zinc oxide Preparation Products Zinc oxide-->Mixed and compound fertilizer-->Calcium phosphate monobasic-->Compound fertilizer-->Lithopone-->Zinc sulfate heptahydrate-->Inhibitor-->Mancozeb-->Isobutyronitrile-->Foliar-fertilizer-->Zinc hydroxide-->corrosion inhibitor PBTCA-type-->Zinc carbonate-->Zineb-->Bone glue-->Bleomycin sulfate-->Zinc borate-->Zinc stearate-->Zinc phosphate-->Scale inhibitor-->Pigment yellow 37 (C.I. 77199)-->Kanamycin sulfate-->Zinc sulfide-->Zinc dimethyldithiocarbamate-->ZINC CYANIDE-->COBALT BLUE-->ZINC BORATE 3.5 HYDRATE-->Ethyl ziram-->Ethylhexanoic acid zinc salt-->Zinc ethylphenyl dithiocarbamate-->FLURITHROMYCIN-->Zinc methionine sulfate-->corrosion inhibitor NJ-304