Ferrous Sulfate Heptahydrate is a hydrate that is a heptahydrate form of iron (2+) sulfate. It is a very useful salt which is made as a result of oxidation of pyrite. Its chemical formula is FeSO4.7H2O.
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Ferrous Sulfate Monohydrate is a hydrate that is the monohydrate form of iron (II) sulfate. It is produced from the heptahydrate by heating above 65°C.
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The substance is not reactive with most of the naturally occurring elements. However, it reacts with sodium bicarbonate to form a thick blanket of carbon dioxide. A foam stabilizer is added to the reaction to create a viable carbon dioxide layer that can effectively lock out oxygen from the burning material. This is the most common substance in many fire extinguishers used in Japan and India.
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The substance is not reactive with most of the naturally occurring elements. However, it reacts with sodium bicarbonate to form a thick blanket of carbon dioxide. A foam stabilizer is added to the reaction to create a viable carbon dioxide layer that can effectively lock out oxygen from the burning material. This is the most common substance in many fire extinguishers used in Japan and India.
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Netherlands
Ferric alum appears as a white powder or crystalline. The crystalline and powder forms of the substance are soluble in water. However, it is not soluble in organic solvent such as ethanol. When in water, the solution appears clears and does not form a residue. Both of them are not toxic and do not catch flames. However, it can present an environmental hazard if spread in a large area.
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