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Copper sulfate (ten points)

Copper sulfate, chemical formula CuSO4, is a white powder. It is a soluble copper salt. Its crystal hydrate, copper sulfate pentahydrate (CuSO4·5H2O), is a blue solid. Its aqueous solution appears blue due to hydrated copper ions. Often used in laboratories to test the presence of water. In real production and life, copper sulfate is often used to refine refined copper, and is mixed with slaked lime to make the pesticide Bordeaux mixture. Copper sulfate is a heavy metal salt and is highly toxic. If swallowed by mistake, you should immediately swallow a large amount of milk, egg white and other protein-rich foods. You can buy it from major Chinese medicine stores or chemical factories. Copper sulfate picture reference: upload.wikimedia/ *** /mons/thumb/5/5b/CuSO4_5H2O/200px-CuSO4_5H2O General information Scientific name Copper sulfate pentahydrate Alias ??copper sulfate blue vitriol Chole vitriol Chemical formula CuSO4·5H2O Molar mass 249.68 g/ mol (CuSO4·5H2O) Appearance blue crystalline solid CAS number [7758-99-8] EINECS number 231-847-6 Properties density and state (substance) 2.284 g/cm3

solid Water solubility 31.6 g /100 ml (0 °C) Melting point 110 °C (? 4H2O) 150 °C (? 5H2O) 650 °C dep. Structural adjustment Structure? Crystal structure triclinic thermodynamic data Construction standard enthalpy ΔfH°solid -769.98 kJ/mol Standard molar entropy S°solid 109.05 J.K?1.mol?1 Safety data EU classification Harmful, dangerous to the environment R-Phrases R22

R36/38

R50/53 S- Phrases S2

S22

S60

S61 PEL-TWA (OSHA) 1 mg/m3 IDLH (NIOSH) 100 mg/m3 Flash point non-flammable RTECS number GL8800000 Supplementary data structure and attributes n

εr

e Thermodynamic data state solid, liquid, gas spectral data UV

IR

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You should be able to buy blue vitriol at a traditional Chinese medicine dispensary. The doctor said that blue vitriol should not cost much = = = = = Copper Sulphate (chemical formula: CuSO4) is also known as "blue vitriol" or "gall vitriol". Blue crystals. Generally used in middle schools for experiments such as crystallization or electrolysis. Molecular formula: CuSO4·5H2O, of which copper oxide (CuO) accounts for about 31.87%, sulfur oxide (SO3) accounts for 32.06%, and water (H2O) accounts for 36.07%. The crystal shape of blue alum belongs to the triclinic system (triclinic) and has a columnar appearance. , plate-like, vertebral or fibrous. This kind of crystal is very fragile and easily dissolves in water, so when collecting crystals, they may be affected by moisture and moisture. "Blue vitriol" is a traditional Chinese medicine that has the effect of relieving external symptoms, that is, clearing away internal heat. Therefore, ordinary pharmacies (including traditional Chinese medicine stores) will sell it, but usually only sell it for three yuan (in granular form, that is, small crystal stones). Generally, it should be boiled with other traditional Chinese medicines. Excessive consumption may cause vomiting symptoms, so it is not recommended to drink it. The mineral crystals and aqueous solutions of gallstone were once used to clear plants growing in waterways or ponds, but this caused serious heavy metal (copper) pollution to the environment and has now been banned. = = = = = In China, gall alum can also be used as traditional Chinese medicine. The gallstone mentioned in the Compendium of Materia Medica (stone gallstone, black stone, king stone, Bishi, Tongle, standing stone)...Other aliases include: stone liquid, blue vitriol, green gallstone, etc.; its efficacy It can induce vomiting, remove nebula, detoxify and resolve phlegm. It can also treat throat congestion, swollen tongue, tooth decay, swollen poison, hemorrhoids, etc.

Abroad, gall vitriol is also known as "copper vitriol (meaning "copper vitriol")" or "blue vitriol (meaning "blue vitriol")". Its official English name Chalcanthite is derived from the Greek "chalkos", " "anthos" means "brass" and "flower" respectively. The latter is related to the appearance of the crystal, while the former is the chemical composition.

Reference: Yahoo

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