Hazardous Chemicals Safety and Compliance Handbook for the Metalworking Industries

SYNONYMS: EEC No. 012-002-00-9; EINECS No. 231-104-6; MAGNESIO (Spanish); MAGNESIUM, ELEMENTAL; MAGNESIUM METAL; MAGNESIUM PELLETS; MAGNESIUM POWDER; MAGNESIUM RIBBONS; MAGNESIUM SCALPINGS; MAGNESIUM SHAVINGS; MAGNESIUM SHEET; MAGNESIUM TURNINGS
IDENTIFICATION:
CAS: 7439-95-4
DOT ID: UN1418 (powder); UN1869 ([with > 50 % magnesium in pellets, turnings or ribbons]); UN2950 [granules, coated (particle size not < 149 microns)].
Hazard Class or Division: 4.1 (FLAMMABLE SOLID) (UN1869); 4.3 (DANGEROUS WHEN WET) (UN1418; UN2950); FORBIDDEN (dross, wet or hot)
ERG Guide: 138
Formula: Mg
RTECS No: OM2100000
Properties: Flammable solid. Silvery. Odorless. Sinks in water; not soluble.
Uses: Many industrial uses including die-cast parts, production of other metals and alloys, including removing sulfur from iron in steel making; in gasoline additives; protection of cathodes in electroplating; making batteries and optical mirrors.
HEALTH & SAFETY INFORMATION
Dust or fume may cause metal fume fever. Repeated exposure may cause chemical to be collected in the body and cause upset stomach.
Respirator: as magnesium oxide 150 mg/m 3: DMFu (any dust, mist and fume respirator) ? SA (any supplied-air respirator). 375 mg/m 3: SA:CF (any supplied-air respirator operated in a continuous-flow mode) ? PAPRDMFu (any powered, air-purifying respirator with a dust, mist, and fume filter). 750 mg/m 3: HiEF (any air-purifying, full-facepiece respirator with a high-efficiency particulate filter) ? PAPRHiE (any powered, air-purifying respirator with a high-efficiency particulate filter) ? SCBAF (any self-contained breathing apparatus with a full facepiece) ?