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Magnesium Trisilicate

Test Specification...BP
Character It occurs as white or almost white powder.
Identification

Test(A)

Test(B)

(a)It gives the reaction of silicate

(b)It gives the reaction of magnesium.

Solubility Practically insoluble in water and in ethanol (96%)
Alkalinity Specified Test
Water soluble salts Not more than 1.5%
Chlorides Not more than 500ppm
Sulfates Not more than 0.5%
Arsenic Not more than 4ppm
Heavy Metals Not more than 40ppm
Loss on ignition Between 17% to 34%
Acid absorbing capacity Specified Test
Assay

A. Magnesium oxides

B. Silicon dioxide

(a) Not less than 29.0 % (ignited substance).

(b) Not less than 65.0 % (ignited substance).

Test Specification...USP
Characters It occurs as a fine, white, odorless, tasteless powder, free from grittiness.
Identification

Test A

Test B

It gives reaction of Magnesium

Specified test

Solubility Insoluble in water and in alcohol.
Water determination Loses between 17.0% to 34%
Soluble salts Weight of the residue is not more than 1.5%
Chlorides Not more than 0.055%
Sulfates Not more than 0.5%
Arsenic Not more than 8 ppm
Free alkali Specified test
Heavy metals Not more than 0.003%
Acid consuming capacity Specified test
Residual solvents Meets the requirement
Ratio of SiO2to MgO Between 2.10 and 2.37
Assay –

Magnesium oxide(MgO)

Silicon dioxide(SiO2)

Not less than 20.0%

Not less than 45.0%

Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.

Other
GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.

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