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STPP sodium tripolyphosphate
1, STPP 94% for soap.
2, STPP for ceramic
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STPP sodium tripolyphosphate
1. Attribute.
Product: Sodium Tripolyphosphate (STPP)
Molecular Formular: Na5P3O10
CAS No.: 13573-18-7
Appearance: White powder or granular; Easily soluble in water;
Potassium Pyrophosphate
Chemicals»Inorganic Salt»Phosphate
Molecular formula: K4P2O7
Appearance:
Colorless or white crystals, or white crystalloid powder or particles
Molecular formula: K4P2O7
Appearance:
Colorless or white crystals, or white crystalloid powder or particles
Properties:
1. Its exterior shows colorless or white crystal, or white crystalloid powder or particles. It has hygroscopic property. Melting point ° C 1109. Thermal decomposition young sex. Easily soluble in water (196.7 g / 100kg, 20 ° C). Not soluble in alcohol. 1% aqueous pH value about 10.5.
2. In acid or alkali solution hydrolysis into potassium phosphate. Mix with water formed viscous pulpous state body. From strong aqueous person for sanshui salt. In (79 + 0.5) ° C. More than 100 gesso, begin to lose ° C, 180 ° C and 300 ° C each lose L / 3. Have other condensation of phosphate all properties. Because of aqueous alkaline strong, have the curb food corruption, defeat, fermentation role. For metallic chelated smaller (but for iron ion larger). pH buffer sex is smaller. Polymer role with other additives, weak matrix-vector effect is small.
Use:
1. Emulsifier; Organization improver, Chelating agent, Slow granule, Stabilizer.
2. Is used as the raw meat binder preparations, detergent, tank cleaning agent, products with buck materials.
3. Many and other condensation phosphate share, such as follows the same ratio for ham, sausage binder: Focal potassium phosphate, sodium 10 10 focal gathered potassium phosphate 30, gather sodium phosphate, sodium 20 30 partial.
4. Usually used to prevent canned seafood produce struvite, prevent discolouration, improve fruit ice cream expansion degrees, coffee raw materials extracted volume, ham, sausage, grinding rate of a water, improve fish noodle tastes and improve the yield, prevent cheese aging, wide applications.
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