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Calcium carbonate is a chemical compound with the formula CaCO3. It is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone, which contains both of those minerals) and is the main component of pearls and the shells of marine organisms, snails, and eggs. Calcium carbonate is the active ingredient in agricultural lime and is created when calcium ions in hard water react with carbonate ions to create limescale.
Ofloxacin(cas.82419-36-1) is yellowish white crystalline powder,No smell, bitter taste. Soluble in glacial acetic acid, soluble in chloroform is difficult to dissolve in methanol, ethanol, acetone, chloroform or water, insoluble in ethyl acetate. Melting point 250 ~ 257 degrees C (decomposition).
Phosphorous acid is the compound described by the formula H3PO3. This acid is diprotic (readily ionizes two protons), not triprotic as might be suggested by this formula. Phosphorous acid is an intermediate in the preparation of other phosphorus compounds.
Dimethyl fumarate (CAS 624-49-7) is a new atmosphere-type anti-mildew agent, referred to as DMF. Under normal temperature, it is white crystalline powder, melting point 102 ~ 104 ℃, specific gravity 1.37, slightly soluble in water, can be dissolved in ethyl acetate, chloroform and alcohol, and with sublimation.
Diethyl fumarate (CAS 623-91-6) is colorless liquid, soluble in ethanol, ethyl ether, acetone, chloroform, slightly soluble in water.
Dioctyl fumarate (CAS 2997-85-5) also called DOF, it is colorless transparent liquid, can miscibility with ether.
Magnesium Hypophosphite ( CAS 10377-57-8 ),white crystal, there are fluorescent.Show neutral or weak acid soluble in water, its aqueous solution, insoluble in ethanol and aether.Relative density 1.59 (12.5/4 ℃).Easy weathering in dry air, and 100 ℃ when lose 5 molecular crystal water.At 180 ℃anhydride, continue to heat, the decomposition released flammable and poisonous phosphine gas. It can be used in medicine, also can be used as analytical reagent.
MSDS Dimethyl fumarate 624-49-7.pdf
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