Metasilicat de sodiu este o sare a acidului silicic, iar formula sa moleculară poate fi scris ca Na2SiO3 · nH2O. Metasilicat de sodiu este un cristal moleculară mică preparat prin reacția termică a unei baze comune cu bule cu sodă caustică
Sinonime: metasilicat de sodiu pentahidrat
CAS: 6834-92-0
Formula moleculară: Na2SiO3 .5H2O
Greutate moleculară: M = 122.066
Aspect: pulbere de cristal alb
metasilicat de sodiu pentahidrat is strongly alkaline, having strong capacity of cleaning, buffering and softening, counteracting acidic contamination, emulsifying fat and oil, deflocculating to inorganic. It can replace STPP to be used for the manufacture of effective detergents and rust remover for metal, reducing environmental pollution, preventing corrosion for metal (zinc, aluminum, etc.). Therefore, sodium metasilicate pentahydrate is widely used for the manufacture of a variety of detergents, used as rust remover for metal, grinding aids for ceramics, deinking agent for paper, dyeing and printing auxiliary for removing oil in textile industry, and also used as the raw material for flameproofing agent, plastic maintenance agent, water retention agent, etc. Used in water reducing agents, sodium metasilicate pentahydrate is able to integrate more hydrones to make better moisture absorption effect
Sodiu caietul de sarcini metasilicat pentahidrat
|
Na2O |
28.7-30.0% |
|
SiO2 |
27.8-29.2% |
|
Densitatea în vrac (g / cm3 ) |
0.80 - 0.97 |
|
PH |
12-13 |
|
Substanță insolubilă în apă |
0,05% Max |
|
Fe |
100 ppm Max |
|
Dimensiunea particulei (16-30mesh )% |
≥90.0 |
|
Punct de topire |
72.2 ℃ |
It is widely used to prepare various detergents.ceramic slurry formingIn addition, it is also widely used in textile, paper making, oil extraction and other industries
