Potassium silicate

CAS NO.：1312-76-1
Empirical Formula: K2O3Si
Molecular Weight: 154.28
MDL number: MFCD00145152
EINECS: 215-199-1
SAFETY DATA SHEET (SDS)
Update Date: 2024-11-19 20:33:22

What is Potassium silicate?

Chemical properties

(Solid) Weight ratio Si O 2 :K 2 O varies with grade from 2.1:1 to 2.5:1; colorless anhydrous lump, shattered or granular. Soluble in water at high temperature and pressure; insoluble in alco- hol. (Solution) Colorless liquid, B′e range 29–48 degrees.

The Uses of Potassium silicate

Potassium silicate is used in binders, carbon electrodes, lead pencils, protective coatings, insoluble pigments, phosphors on television tubes and detergent additives. It acts as a catalyst to make glass, ceramics, welding rods, adhesives, cements, gels, paints, pulp and paper production. Further, it is used in horticulture as a soluble source of potassium and silicon. It acts as a corrosion inhibitor.

The Uses of Potassium silicate

As binder (e.g., in carbon electrodes, lead pencils, protective coatings, insoluble pigments); detergent, in glass and ceramics manufacture.

Flammability and Explosibility

Not classified

Properties of Potassium silicate

Melting point:	>300°C
Density	1.203-1.209 g/cm3
form	Powder
color	White
Water Solubility	Soluble in water.
Merck	14,7668
CAS DataBase Reference	1312-76-1(CAS DataBase Reference)
EPA Substance Registry System	Potassium silicate (1312-76-1)

Safety information for Potassium silicate

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.