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Calcium hydroxide  Structure

Calcium hydroxide

Chemical Properties

Melting point 580 °C
Boiling point 2850 °C
Density  2.24 g/mL at 25 °C (lit.)
storage temp.  Store at +5°C to +30°C.
solubility  1.7g/l
form  Solid
pka 12.6[at 20 ℃]
color  White
Odor Odorless
PH Range 12.4
PH 11.27(1 mM solution);12.2(10 mM solution);12.46(100 mM solution);
Water Solubility  1.65 g/L (20 ºC)
Sensitive  Air Sensitive
Merck  14,1673
Solubility Product Constant (Ksp) pKsp: 5.26
Exposure limits ACGIH: TWA 5 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
NIOSH: TWA 5 mg/m3
Stability Stable. Incompatible with strong acids.
CAS DataBase Reference 1305-62-0(CAS DataBase Reference)
FDA 21 CFR 184.1205; 582.1205; 310.545
Substances Added to Food (formerly EAFUS) CALCIUM HYDROXIDE
SCOGS (Select Committee on GRAS Substances) Calcium hydroxide
EWG's Food Scores 1-4
FDA UNII PF5DZW74VN
NIST Chemistry Reference Calcium dihydroxide(1305-62-0)
EPA Substance Registry System Calcium hydroxide (1305-62-0)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H315-H318-H335
Precautionary statements P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi,C
Risk Statements  41-34-37/38
Safety Statements  26-39-45-36/37/39-27
RIDADR  3262
WGK Germany  1
RTECS  EW2800000
34
TSCA  Yes
HS Code  2825 90 19
HazardClass  8
PackingGroup  III
Hazardous Substances Data 1305-62-0(Hazardous Substances Data)
Toxicity LD50 orally in rats: 7.34 g/kg (Smyth)
NFPA 704:
0
2 0

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Calcium hydroxide Chemical Properties,Usage,Production

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Global(567)Suppliers
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-- info@akpetrochem.com Canada 676 30
-- tech@caledonlabs.com Canada 1150 68

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