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  • HRK Factory Sodium Tripolyphosphate Raw Materials Powder on sale

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    Product Overview:

    Sodium Tripolyphosphate, also known as Pentasodium Phosphate, Sodium Metaphosphate, STPP, Pentasodium Tripolyphosphate. White powdery crystal, good fluidity, relative molecular mass 367.86, melting point 622 ℃, soluble in water, its aqueous solution is alkaline. Commonly used in food, as moisture retention agent, quality improver, pH regulator, metal chelating agent.

    HRK Factory Sodium Tripolyphosphate Raw Materials Powder on sale Attributes

    Sodium Tripolyphosphate Raw Materials Powder

    CAS:7758-29-4

    MF:Na5O10P3

    Sodium Tripolyphosphate

    MW:367.86

    EINECS:231-838-7

    Specification​: 99% min Sodium Tripolyphosphate Powder

    Sample:Sodium Tripolyphosphate Powder

    Packaging:1kg/bag, 25kg/drum

    Brand: Raw Materials

    Appearance:white

    Storage: Cool Dry Place

    Shelf Life: 2 Years

    Test Method: HPLC

    HRK Factory Sodium Tripolyphosphate Raw Materials Powder on sale Details

    Sodium Tripolyphosphate Usage and Function.

    Sodium tripolyphosphate aqueous solution is weakly alkaline (1% aqueous solution of the PH value of about 9.7), it is in the PH of 4.3 ~ 14 range of water, the formation of suspensions (similar to the role of emulsion), that is, the role of dispersion. Sodium tripolyphosphate can also make liquid, solid particles better dissolved in liquid (such as water) medium, so that the solution appearance completely transparent, as if the real solution, which is solubilising effect. Because of the above unique properties of sodium tripolyphosphate, making it an important and ideal raw material for laundry detergent.

    Sodium Tripolyphosphate

    Uses of Sodium Tripolyphosphate.

    It is used as high efficient water softener for cooling water treatment in power stations, rolling stock, boilers and fertiliser plants. It has strong ability to complex Ca2+, 19.5g of calcium can be complexed per 100g, and due to the chelating effect and adsorption and dispersion of SHMP, it destroys the normal growth process of calcium phosphate crystals, and prevents the formation of calcium phosphate scale. The dosage is 0.5mg/L, and the rate of preventing scaling is 95%~100%.

    Sodium tripolyphosphate is used in detergents, as an auxiliary, soap synergist and prevent bar soap crystallisation and frosting, industrial water softener, tanning pre-tanning agent, dyeing auxiliaries, oil wells digging mud control agent, paper with oil pollution prevention agent, paint, kaolin, magnesium oxide, calcium carbonate and other suspensions to deal with effective dispersing agent. Edible grade sodium tripolyphosphate can be used as food improver for various fish and meat products, clarifying agent for beverages.

    It can be used as food improver for fish and meat products, clarifying agent for beverages. It can also be used as food improver to increase the complex metal ions, pH value and ionic strength of food products, which can improve the adhesion and water retention of food products. China's regulations can be used in dairy products, fish products, poultry products, ice cream and instant noodles, the maximum use of 5.0g/kg; in canned food, fruit juice (flavoured) beverages and plant protein beverages, the maximum use of 1.0g/kg.

    Sodium Tripolyphosphate

    Preparation of Sodium Tripolyphosphate.

    Sodium tripolyphosphate is traditionally prepared by neutralising hot phosphoric acid with a mass fraction of 75% of H3PO4 in a suspension of soda ash to produce a neutralised slurry with Na/P of 5:3, which is held at 70°C to 90°C; after which the slurry obtained is sprayed into a polymerisation furnace to be dehydrated at high temperatures and condensed into sodium tripolyphosphate at about 400°C.

    Sodium Tripolyphosphate raw

    Product Method of Bulk Sodium Tripolyphosphate Powder.

    Recrystallisation method

    Dissolve industrial sodium tripolyphosphate in water at 60~70℃, prepare a solution of 17%~22%, and filter to remove insoluble impurities; then the product is obtained by vacuum concentration, cooling crystallisation, separation and drying.

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