exposure controls/personal protection
exposure controls
the use of local exhaust ventilation is recommended to control emissions near the source. Provide appropriate ventilation of confined spaces. Use explosion-proof ventilation equipment. See Section 2 for Component Exposure Guidelines
personal tection
Eye protection eye flushing. facilities and protective gloves are recommended. Ensure adequate ventilation. Wear an appropriate particulate respirator in accordance with 29 CFR 1910.134 or CSA standard Z94.4-M1982 for dust exposure that may exceed exposure limits. Area and/or personal air monitoring is recommended to determine whether are below permissible limits. lf exposure to phosphine and arsine is suspected (see section 10), or if adequate ventilation is not possible, a self contained breathing apparatus or an air supplied respirator is recommended.
occupational exposure limits (osha and acgih)
physical and chemical properties
physical state
lump or granule
color
silvery grey, metallic surface
odor odorless
solubility : lnsoluble in water
melting ponit
specific gravity (water = 1) : approx
stability and reactivity
general
ferromanganese alloy is stable and hazardous polymerization will not occur
conditions to avoid
avoid generating sparks and other ignition sources (e.g. welding) in areas with high dust concentrations. Ferromanganese alloy particles suspended in air can cause dust explosion. Addition of wet material to molten metal may cause explosions.
materials to avoid avoid contact with water and/or acids
hazardous reaction/decomposition products
11. toxicological information
acute effects
inhalation
Finely divided dust may irritate and dehydrate mucous membranes. Phosphine/arsine may be absorbed from dust deposited on mucous. The toxic mechanism for phosphine is not clear. Phosphine irritates exposed mucous membranes. depresses the central nervous system (CNS) and can cause edema of the lungs. Acute, non-fatal poisoning with phosphine gives temporary effects, including but not limited to malaise, vomiting stomach pains, cough, and difficulty in breathing. Symptomatic treatment: Corticosteroids, prophylactic for edema of the lungs.