The methyl orthosilicate is a clear colorless liquid. Flash point below 125 °F. Less dense than water and insoluble in water. Very toxic by ingestion and inhalation and very irritating to skin and eyes. Used to make paints and lacquers.

Computed Properties

Molecular Weight	152.22118 g/mol
Molecular Formula	C4H12O4Si
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	4
Exact Mass	152.050485 g/mol
Monoisotopic Mass	152.050485 g/mol
Topological Polar Surface Area	36.9 A^2
Heavy Atom Count	9
Formal Charge	0
Complexity	55.5
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently-Bonded Unit Count	1

Hazards Identification

· Health Hazard

TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Bromoacetates and chloroacetates are extremely irritating/lachrymators. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

· Fire Hazard

Flammable

· Explosion Hazard

Above 20°C explosive vapour/air mixtures may be formed

· Skin Hazard

Redness. Pain.

· Inhalation Hazard

Burning sensation. Cough. Shortness of breath. Sore throat. Symptoms may be delayed. See Notes.

· Eye Hazard

Redness. Pain. Loss of vision.

· Ingestion Hazard

Abdominal pain.

· Fire Potential

Corrosive and flammable liquid.

· Skin, Eye, and Respiratory Irritations

Methyl silicate can affect you when breathed in. Severely irritates and burns the eyes and skin. Exposure to the vapor can cause severe eye damage and cause permanent blindness. This can occur up to 12 hours after exposure has ceased, even if no irritation is noticed at the time. Inhalation irritates the respiratory tract. Higher exposures can cause pulmonary edema, a medical emergency, that can be delayed for several hours. This can cause death. Exposure to high levels can damage the lungs and kidneys.

Tetramethyl orthosilicate

Manufacturer of oxalic acid, diethyl oxalate and tetramethyl guadinine. With technical data.

Methyl silicate

Distributor of methyl mromide and amino acids for agricultural applications.

At temperatures below 39ºC (102ºF), methyl isocyanate is a very flammable liquid that readily evaporates when exposed to air. Gaseous methyl isocyanate is approximately 1.4 times heavier than air. Methyl isocyanate liquid is colorless with a pungent odor.

Manufacturer of cimetidine intermediates series, 4-methyl imidazole, pyruvaldehyde (methyl glyoxal), and pyruvate.

Flammable Liquid Tetramethyl Orthosilicate

Provides above-ground and below-ground fluid storage and handling products, including fiberglass and steel tanks, for hazardous and non-hazardous flammable and combustible liquids.

Providers of fire equipment including fire extinguishers and hose reels. Also offering safety storage cabinets for flammable liquid or hazardous chemicals.

Fluid storage and pumping specialists, including petrol and other flammable liquids.

Corrosive Tetramethyl Orthosilicate

Institute of Corrosion offers training and certification in various corrosion mitigation disciplines.

Manufacturer of oxalic acid, diethyl oxalate and tetramethyl guadinine. With technical data.

Provides basic to advanced training in corrosion control and surveys.