Product Identification

Product Name

Silicon monoxide

Synonyms

Oxoniumylidynesilanide
Oxosilylene
Silicon(II) oxide

CAS

10097-28-6

Formula

OSi

Molecular Weight

44.08

EINECS

233-232-8

Merck

12,8640

Physical and Chemical Properties

Appearance

Odorless, black solid.

Solubility in water

Insoluble

Melting Point

1702

Boiling Point

1880

Density

2.13 g/cm3 (20 C)

First Aid Measures

Ingestion

Seek medical treatment.

Inhalation

Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.

Skin

Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.

Eyes

Rinse opened eye for several minutes under running water. Then consult a doctor.

Handling and Storage

Storage

Keep container tightly sealed. Store in cool, dry conditions in well sealed containers.

Exposure Controls/Personal Protection

Personal Protection

Protective work clothing. Chemical protective gloves. Safety glasses or goggles.

Exposure Effects

Inorganic silicon compounds may be acute inhalation irritants. Prolonged inhalation may cause pulmonary fibrosis known as silicosis.

Fire Fighting Measures

Fire Fighting

Use fire fighting measures that suit the surrounding fire. Wear self-contained respirator. Wear fully protective impervious suit.

Fire Potential

Product is not flammable.

Accidental Release Measures

Small spills/leaks

Pick up mechanically.

Stability and Reactivity

Stability

Decomposition will not occur if used and stored according to specifications.

Incompatibilities

Oxidizing agents

Hazards Identification

EC Risk Phrase

R: 20 37