239232
Calcium hydroxide
ACS reagent, ≥95.0%
Sign In to View Organizational & Contract Pricing.
Select a Size
Change View
About This Item
Linear Formula:
Ca(OH)2
CAS Number:
Molecular Weight:
74.09
NACRES:
NB.24
PubChem Substance ID:
UNSPSC Code:
12352305
EC Number:
215-137-3
MDL number:
Assay:
≥95.0%
Grade:
ACS reagent
Form:
powder
grade
ACS reagent
Quality Segment
assay
≥95.0%
form
powder
impurities
≤0.03% insol. in HCl, ≤0.1% S compounds, ≤3.0% calcium carbonate
pH
12.4-12.6 (20 °C)
density
2.24 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.03%
cation traces
Fe: ≤0.05%, K: ≤0.05%, Mg: ≤0.5%, Na: ≤0.05%, Sr: ≤0.05%, heavy metals: ≤0.003% (by ICP)
SMILES string
O[Ca]O
InChI
1S/Ca.2H2O/h;2*1H2/q+2;;/p-2
InChI key
AXCZMVOFGPJBDE-UHFFFAOYSA-L
General description
Calcium hydroxide is commonly used in wastewater treatment plants (WWTPs) to adjust pH. Calcium hydroxide has numerous applications due to its strong basic characteristics. Uses include flocculants in water and sewage treatment, a whitewash ingredient, soil improvement, as a lye substitute in non-lye hair relaxers, and in the liming industry to neutralize the acid.
Application
Calcium hydroxide can be used:
- In the pretreatment of technical lignin during the pyrolysis in a fluidized bed reactor to overcome the agglomeration to produce phenolic-rich bio-oil.
- As a catalyst in the pyrolysis of pinewood in a fixed bed reactor.
Still not finding the right product?
Explore all of our products under Calcium hydroxide
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.