Fehling’s A is a solution containing copper(II) sulphate, which is blue. Fehling’s B is a clear liquid consisting of potassium sodium tartrate (Rochelle salt) and a strong alkali, usually sodium hydroxide. During the test solutions A and B are prepared individually and stored
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Chemicals
Nitric Acid
Nitric acid, also known as aqua fortis and spirit of niter, is a highly corrosive mineral acid. The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water. Most commercially available nitric acid has a concentration of 68% in water.Formula: HNO3SKU: n/a -
Chemicals
Sulphur Powder
Sulphur is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent, and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S₈. Elemental sulfur is a bright yellow, crystalline solid at room temperature.Symbol: SSKU: n/a -
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Chemicals
Sodium Carbonate
It is also called soda ash or washing soda.The chemical structure of sodium carbonate is Na2CO3, and its molar mass is 106.0 g/mol. Sodium carbonate is an ionic compound- asodium salt of carbonic acid, and is composed of twosodium cations (Na+) and a carbonate anion (CO3-).
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