STPP

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STPP
Posting date : Dec 02, 2009
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Free Member Scince Nov 18, 2009
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29-
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Soluble in water, weakly alkaline aqueous solution gradually decomposes sodium ion, pyrophosphate ion and phosphate ions. Heated to 622 ℃ melt, resulting in sodium pyrophosphate. Used in meat processing, synthetic detergent formulations (with synergies), textile dyeing, also used as a dispersing agent, to help solvent. By the member, and two molecules of sodium dihydrogen phosphate, disodium hydrogen phosphate fully mixed, heated to 110 ℃ dehydration, continue heated to 540-580 ℃ dehydration made-I. And then heated to 620 ℃ and above melting, reduce temperature to 550 ℃, in the air cooling, which collapse into a powder type Ⅱ. In the aqueous solution by adding anhydrous ethanol, the availability of six water objects.

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