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Precipitated Silica abrasive agent for Toothpaste /Precipitated Silica Factory China
Products Name: Precipitated Silica
Model No.:JS-80
CAS Number: 7631-86-9
Precipitated Silica for Coating
Precipitated silica, commonly known as white carbon black, also known as hydrated silicic acid, light silica, chemical expressionis generally written as mSiO2 • nH2O, the appearance of white highly dispersed amorphous powder, also processed into pellets as a commodity. The specific gravity is 2.319~2.653, and the melting point is 1750°C.
Precipitated silica is one of the main additives in toothpaste. It plays two roles in toothpaste. One is the effect of the friction agent and the other is the thickener. The silica produced by the precipitation method has a large total specific surface area, strong adsorption capacity, uniform particle size, good optical properties for improving transparency, stable nature,non-toxic and harmless, and is a good toothpaste raw material.
Specification:
Test Methods | Properties | Units | Target Values (Spec Limits) | Actual Values | ||
HG/T3065-2008 | Loss on drying (2Hrs,105℃) | % | Max.6.0 | 4.8 | ||
HG/T3066-2008 | Ignition loss 1000℃ | % | Max.7.0 | 5.1 | ||
HG/T3072-2008 | DBP absorption value | cm3/g | 0.5-1.0 | 0.7 | ||
HG/T3067-2008 | pH value (10%aqueous suspension) | — | 6.0-8.0 | 7.4 | ||
HG/T3062-2008 | SiO2 (Dry Basis) | % | Min.97 | 98.1 | ||
HG/T3073-1999 | BET specific surface area | m2/g | 50-100 | 79 | ||
Soluble salt (Na2SO4) | % | Max.1.0 | 0.4 | |||
conclusion结论 | This batch of product is qualified | |||||
Audit 审核 | Analysis | |||||
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