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Food additive sodium tripolyphosphate(STPP)
Food additive sodium hexametaphosphate(SHMP)
Food additive Sodium pyrophosphate(TSPP) anhydrous
Food additive Sodium Acid Pyrophosphate(SAPP)
Food additive Tetrapotassium Pyrophosphate(TKPP)
Food additive Monopotassium Phosphate(MKP)
Food additive Tripotassium Phosphate(TKP)
Food additive trisodium phosphate
Food additive sodium hydrogen phosphate
Electronic grade sodium dihydrogen phosphate/Mono Sodium Phosphate
n-Hexane (Chromatographic grade)
Trichloromethane (Chromatographic grade)
Toluene (Chromatographic grade)
n-Hexane (for residue analysis)
Trichloromethane (for residue analysis)
Electronic grade Ammonium Sulfate
Electronic grade Phosphoric acid
Copper sulfate pentahydrate
Appearance and properties: Anhydrous copper sulfate is an off-white powder, which easily absorbs water and turns to blue-green copper sulfate pentahydrate.
Melting point: 560°C.
Density: 3.606g / mL (25ºC)
Vapor pressure: 7.3mm Hg (25ºC)
Solubility: soluble in water and methanol. Insoluble in ethanol
However, when crystallized from an aqueous solution, blue copper sulfate pentahydrate (CuSO4·5H2O, also known as alum) is formed, and this principle can be used to test the presence of water. It will decompose after losing crystal water when heated, it is stable under normal temperature and pressure, does not deliquesce, and will gradually weather in dry air.
Specification:
Name | AR | CP |
Content(CuSO4·5H2O) ,w/100% | ≥99.0 | ≥99.0 |
Water insoluble matter ,w/100% | ≤0.005 | ≤0.01 |
chloride ,w/100% | ≤0.001 | ≤0.002 |
N ,w/100% | ≤0.001 | ≤0.003 |
Na ,w/100% | ≤0.005 | ≤0.015 |
K ,w/100% | ≤0.001 | ≤0.004 |
Fe,w/100% | ≤0.003 | ≤0.02 |
Ni ,w/100% | ≤0.005 | ≤0.015 |
Zn ,w/100% | ≤0.03 | ≤0.06 |
Usage:
1. It is used as an analytical reagent, for example, it can be used in biology to configure the Filin reagent to identify reducing sugars and the biuret reagent to identify proteins.
2. Used as food-grade chelating and clarifying agents, used in the production process of preserved eggs and wine;
3. Industry. Used in the manufacture of other copper salts such as cuprous chloride, copper chloride, copper pyrophosphate, cuprous oxide, copper acetate, copper carbonate, copper monoazo dyes such as reactive brilliant blue, reactive violet, etc .; the coating industry is used to produce ship bottoms Antifouling paint; electroplating industry as the main bright acidic copper plating salt and copper ion additive; printing and dyeing industry as a mordant and oxygen-enhancing agent for fine dyeing cloth; organic industry as a catalyst for the synthesis of perfumes and dye intermediates, methyl Polymerization inhibitor for methyl acrylate. Anhydrous salts are used to catalyze the transacetal reaction. Anhydrous salts react with potassium permanganate to form an oxidant for conversion of primary alcohols.
4. In the agricultural field, Bordeaux liquid is generated after mixing with lime water. As a fungicide, it is used to control fungi on crops and prevent fruit and other rots. Because copper ions are toxic to fish, the amount must be strictly controlled. The aquaculture industry is also used as the main raw material of trace element copper as a feed additive;
5. Dehydrating agent for alcohols and organic compounds. Gas desiccant.
6. Chemistry education. Copper sulfate is usually included in children's chemical experiment reagents for crystal formation experiments and copper electroplating experiments. Because of its toxicity, it is not recommended for young children. Copper sulfate can also be used to demonstrate the dehydration and weathering of crystals and the process of obtaining crystal water. In the junior high school experimental examination, the substitution reaction between copper sulfate and iron was used to verify the law of mass conservation. It can also produce sulfuric acid.
7. Used as an emetic in the medical field.
