Sodium hexametaphosphate (SHMP) is a hexamer of composition with a formula (NaPO3)6. Sodium hexametaphosphate of commerce is typically a mixture of polymeric metaphosphates, of which the hexamer is one, and is usually the compound referred to by this name. It is more correctly termed sodium polymetaphosphate. It is prepared by melting monosodium orthophosphate, followed by rapid cooling.
SHMP is used as a sequestrant and has applications in a wide variety of industries, including as a food additive. Sodium carbonate is sometimes added to SHMP to raise the pH to 8.0-8.6, which produces a number of SHMP products used for water softening and detergents like texapon. Also used as a dispersing agent to break down clay and other soil types.
Physical and Chemical properties of SHMP
In the table below some of the chemical and physical properties of this product are mentioned. all data that is mentioned in this table is gathered from the Wikipedia website:
Sodium Hexametaphosphate Applications:
Sodium Hexametaphosphate is an inactivate metallic ion used to prevent the deterioration of cosmetics and personal care products, prohibiting the corrosion (rust) of metallic materials used in packaging.
it is used in Food, Beverage, Pharmaceutical, Health & Personal care products, Agriculture/ Animal Feed/Poultry. and also it is used as a chelating agent, leavening agent, and as an acidity regulating agent. The use of this product is in meat products, fruit drinks, soft drinks, dairy products, cheese, and canned fruits and vegetables. Shanghai Chemex is one of the most reputable suppliers of this chemical in the world.
In Food Production:
it is used as a food additive such as in Artificial maple syrup, canned milk, cheese powders and dips, imitation cheese, whipped topping, packaged egg whites, roast beef, fish fillets, fruit jelly, frozen desserts, salad dressing, herring, breakfast cereal, ice cream.
Sodium Hexametaphosphate is used as a cleansing agent in a beverage such as beer and bottled beverages.
In Health and Personal care:
this product is used in the formulation of makeup foundations, mascara, bath products, and moisturizing and skincare products. Sodium Hexametaphosphate can also be used in toothpaste.
it can be used in pet foods.
In Other Industries
this material is used as a deflocculant in the production of clay-based ceramic particles and as a dispersing agent to break down clay and other soil types for soil texture assessment.
Industrial packaging of sodium hexametaphosphate:
packing of chemicals is one of the most important factors in the transportation segment. below, there is a Shanghai Chemex group project for SHMP in China. the common packing for this chemical is 25 Kg bags as you can see below: