Zinc oxide CAS NO.1314-13-2

Molecular Formula:OZn Molecular Weight:81.37 EINECS:215-222-5 Density:5.6 Melting Point:1975 oC Solubility:1.6 mg/L (29 oC) Risk Codes:R50/53 De…

Molecular Formula:OZn Molecular Weight:81.37 EINECS:215-222-5 Density:5.6 Melting Point:1975 oC Solubility:1.6 mg/L (29 oC) Risk Codes:R50/53 Details liansport Information:UN 1436/3077 Hazard Symbols: Zinc oxide fume is harmful by inhalation. Zinc oxide powder reacts violently with chlorinated rubber at 215C. TLV: (fume) 5 mg/m3. MSDS: View Properties:Odorless, white or yellowish powder. Hexagonal white crystals. Mp: >1800°, d: 5.47. Insol in water and alc; sol in dil acetic or mineral acids, ammonia. IDLH 500 mg/m3. Derivation:(1) Oxidation of vaporized pure zinc (French process), (2) roasting of zinc oxide ore (franklinite) with coal and subsequent oxidation with air, (3) similar treatment starting with other ores, (4) oxidation of vapor-fractionated die castings. Grade:American process, lead-free; French process; lead-free; green seal; red seal; white seal (according to fineness); leaded (white lead sulfate); USP; single crystals. Use:Accelerator activator, pigment and reinforcing agent in rubber, ointments, pigment and mold-growth inhibitor in paints, UV absorber in plastics, ceramics, floor tile, glass, zinc salts, feed additive, dietary supplement, seed treatment, cosmetics, photoconductor in office copying machines and in color photography, piezoelectric devices, artists' colorant. Standards:OSHA PEL: Fume: TWA 5 mg/m3; STEL 10 mg/m3; Dust: TWA Total Dust: 10 mg/m3; Respirable Fraction: 5 mg/m3 ACGIH TLV: TWA 2 mg/m3; STEL 10 mg/m3; respirable fraction DFG MAK: 1.5 mg/m3 NIOSH REL: TWA (Zinc Oxide) 5 mg/m3; CL 15 mg/m3/15M