Sodium Tripolyphosphate (STPP) CAS NO.:7758-29-4

Description:

Sodium Tripolyphosphate (STPP) CAS NO.:7758-29-4 is an inorganic compound, white powder, easily soluble in water, with significant chelating ability to metal ions such as calcium and magnesium. It can soften hard water and turn suspension into solution. It has weak alkalinity and no corrosiveness. It is an inorganic surfactant with strong emulsification effect on lubricating oil and fats. The bulk density is usually divided into low density 0.35-0.5g/cm3, medium density 0.51-0.65g/cm3, and high density 0.66-0.9g/cm3; Five sodium has two crystal forms, Type I (high-temperature type) and Type II (low-temperature type), with the same chemical properties. The difference lies in the higher thermal stability and hygroscopicity of Type I compared to Type II. At the same time, the solubility and hydration heat of the two are different. Gradually hydrolyzing in water to form orthophosphate, it has good chelating ability with metal ions. It can chelate with metal ions such as calcium, magnesium, iron, etc., and has certain properties as an organic surfactant.

Application：

Sodium Tripolyphosphate (STPP) CAS NO.:7758-29-4 is used as a water retention agent, quality improvement agent, pH regulator, and metal chelating agent in the food industry. Used as a quality improver for canned goods, fruit juice beverages, dairy products, soy milk, etc. It is mainly used for tenderizing canned ham and softening the bean skin in canned fava beans. It can also be used as a softener and thickener.

Specification:

Packaging and Storage

Lined in plastic bags, wrapped in plastic coated woven bags, with a net weight of 25kg per bag.

This product should be stored in a dry and ventilated warehouse to prevent rain and moisture during transportation. Handle with care during loading and unloading to prevent packaging damage and moisture. Store separately from toxic substances.