SODIUM METASILICATE | MSDS | SPECIFICATIONS

SODIUM
METASILICATE

GENERAL DEFINITIONS
CAS NUMBER	6834 – 92 – 0
GENERAL CATEGORY	Industrial ingredients
FACTORIAL CATEGORY	Builder agent
TRADE NAME	Sodium metasilicate

CHEMICAL PROPERTIES
CHEMICAL FORMULA	Na2O3Si
MOLECULAR WEIGHT	122.06
MELTING POINT ( C )	1090
PH RANGE	12 – 13
BOILING POINT ( C )	Not specified
DENSITY	2.61 g / cm3
SOLUBILITY	Soluble in water

SODIUM METASILICATE

PHYSICAL PROPERTIES AND USES
APPEARANCE	Powder
COLOR	White
ODOR	Odorless
AID MEASURES	It causes an irritation. In contact, wash more water.
STORAGE	Keep cool and dry place
APPLICATIONS	Sodium metasilicate is not a cleaning agent by itself. It is a VERY strong base. The pH of a 1% aqueous solution is about 13. In moist air it is corrosive to metals like zinc, aluminium, tin and lead, forming hydrogen gas. As a strong base, it reacts violently with acids. A major use is as a builder (a material that enhances or maintains the cleaning efficiency of a surfactant, principally by inactivating water hardness) in soaps and detergents. It may be used as part of a component in a chemical degreaser, where it would react with fatty acids(animal grease) to form a soap, which is then rinsed away. Sodium silicate, on the other hand, is an abrasive white powder frequently used in things like toothpaste. It doesn't clean by itself either.

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