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1. Tin(IV) oxide
Tin(IV) oxide, also known as stannic oxide, is the inorganic compound with the formula SnO₂. The mineral form of SnO₂ is called cassiterite, and this is the main ore of tin. With many other names, this oxide of tin is an important material in tin chemistry. It is a colourless, diamagnetic, amphoteric solid.
Formula: SnO₂
Molar mass: 150.71 g/mol
Melting point: 1,630 °C
Density: 6.95 g/cm³
2. Aluminum oxide
Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al₂O₃. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.
Formula: Al₂O₃
Molar mass: 101.96 g/mol
Melting point: 2,072 °C
Density: 3.95 g/cm³
Boiling point: 2,977 °C
ChemSpider ID: 14086
ChemSpider ID: 26988
3. Silver sulfide
Silver sulfide is an inorganic compound with the formula Ag ₂S. A dense black solid, it is the only sulfide of silver. It is useful as a photosensitizer in photography. It constitutes the tarnish that forms over time on silverware and other silver objects.
Formula: Ag2S
Molar mass: 247.8 g/mol
Density: 7.23 g/cm³
ChemSpider ID: 145878
4. Copper (II) sulfate
Copper(II) sulfate, also known as copper sulphate, are the inorganic compounds with the chemical formula CuSO₄ₓ, where x can range from 0 to 5. The pentahydrate is the most common form. Older names for this compound include blue vitriol, bluestone, vitriol of copper, and Roman vitriol.
Formula: CuSO4
IUPAC ID: Copper(II) sulfate
Molar mass: 159.609 g/mol
Density: 3.6 g/cm³
Melting point: 110 °C
Soluble in: Water
5. Potassium carbonate
Potassium carbonate is the inorganic compound with the formula K₂CO₃. It is a white salt, which is soluble in water. It is deliquescent, often appearing as a damp or wet solid. Potassium carbonate is mainly used in the production of soap and glass.
Formula: K2CO3
Molar mass: 138.205 g/mol
IUPAC ID: Potassium carbonate
Density: 2.43 g/cm³
Melting point: 891 °C
Soluble in: Water
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