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Aluminum hydroxide Structure

Aluminum hydroxide

Chemical Properties

Melting point 300℃
Boiling point 2980℃[at 101 325 Pa]
Density  2.42 g/cm3 at 20 °C
vapor pressure  <0.1 hPa (20 °C)
refractive index  Average refractive index: 1.57-1.59
storage temp.  Store at +5°C to +30°C.
solubility  0.0015g/l
form  colloidal suspension
Specific Gravity 2.42
color  White
Odor Odorless
PH Range >7
PH 8-9 (100g/l, H2O, 20℃)(slurry)
Water Solubility  insoluble
Crystal Structure Monoclinic
Merck  14,342
Solubility Product Constant (Ksp) pKsp: 32.89
Exposure limits ACGIH: TWA 1 mg/m3
Dielectric constant 2.2(Ambient)
Stability Stable. Incompatible with strong bases.
LogP -1.380 (est)
Substances Added to Food (formerly EAFUS) ALUMINUM HYDROXIDE
SCOGS (Select Committee on GRAS Substances) Aluminum hydroxide
FDA 21 CFR 177.1200; 177.2600; 182.90; 310.545
CAS DataBase Reference 21645-51-2(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 5QB0T2IUN0
NCI Drug Dictionary aluminum hydroxide
ATC code A02AB01
EPA Substance Registry System Aluminum hydroxide (21645-51-2)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36
Safety Statements  26-36
WGK Germany  -
RTECS  BD0940000
TSCA  Yes
HS Code  28183000
Hazardous Substances Data 21645-51-2(Hazardous Substances Data)
Toxicity TDLo oral in child: 79gm/kg/2Y-I
NFPA 704:
1
2 0

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