Métasilicate de sodium est un sel d'acide silicique, et sa formule moléculaire peut être écrite comme Na2SiO3 · nH2O. Métasilicate de sodium est un cristal moléculaire bas préparé par la réaction thermique d'une base de bulle commun avec la soude caustique
Synonymes: métasilicate de sodium pentahydraté
N ° CAS: 6834-92-0
Formule moléculaire: Na2SiO3 .5H2O
Poids moléculaire: M = 122,066
Aspect: poudre cristalline blanche
métasilicate de sodium pentahydraté 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
métasilicate de sodium pentahydraté spécification
|
Na2O |
% 28,7 à 30,0 |
|
SiO2 |
% 27,8 à 29,2 |
|
Masse volumique apparente (g / cm 3 ) |
0,80 au 0,97 |
|
pH |
12-13 |
|
Matières insolubles dans l'eau |
0,05% Max |
|
Fe |
100 ppm au maximum |
|
Taille des particules (16-30mesh )% de |
≥90.0 |
|
Point de fusion |
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
