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Zinc oxide  Structure

Zinc oxide

Chemical Properties

Melting point 1975 °C
Boiling point 1949.9°C (estimate)
Density  5.6
refractive index  2.008~2.029
Flash point 27℃
storage temp.  Store at +5°C to +30°C.
solubility  0.0016g/l insoluble
form  nanopowder
color  White to pale yellow
Specific Gravity 5.61
PH 7 (50g/l, H2O, 20℃)(slurry)
Water Solubility  1.6 mg/L (29 ºC)
Merck  14,10147
Exposure limits ACGIH: TWA 2 mg/m3; STEL 10 mg/m3
OSHA: TWA 5 mg/m3; TWA 15 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3; Ceiling 15 mg/m3
Stability Stable. Incompatible with magnesium, strong acids.
FDA 21 CFR 182.8991; 582.5991; 73.1991; 73.2991; 176.170; 178.3297; 310.545; 582.80
CAS DataBase Reference 1314-13-2(CAS DataBase Reference)
SCOGS (Select Committee on GRAS Substances) Zinc oxide
Substances Added to Food (formerly EAFUS) ZINC OXIDE
EWG's Food Scores 2-3
NCI Dictionary of Cancer Terms zinc oxide
NIST Chemistry Reference Zinc oxide(1314-13-2)
EPA Substance Registry System Zinc oxide (1314-13-2)
Cosmetics Info Zinc Oxide


Signal wordDanger
Hazard statements H225-H319-H410
Precautionary statements P273-P391-P501
Hazard Codes  N,Xn,F
Risk Statements  50/53-20-43-36/38-20/21/22-67-66-10-11
Safety Statements  60-61-7/9-36/37-26-16
RIDADR  UN 3077 9/PG 3
WGK Germany  2
RTECS  ZH4810000
HazardClass  9
PackingGroup  III
HS Code  28170000
Hazardous Substances Data 1314-13-2(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: > 5000 mg/kg
IDLA 500 mg/m3
NFPA 704:
1 0

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