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Merck
CN

450146

Calcium hydroxide

99.995% trace metals basis

Synonym(s):

Calcium dihydroxide, Carboxide

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About This Item

Linear Formula:
Ca(OH)2
CAS Number:
1305-62-0
Molecular Weight:
74.09
NACRES:
NA.23
PubChem Substance ID:
24868536
UNSPSC Code:
12352302
EC Number:
215-137-3
MDL number:
MFCD00010901
Assay:
99.995% trace metals basis
Form:
powder

Key Documents

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Product Name

Calcium hydroxide, 99.995% trace metals basis

InChI key

AXCZMVOFGPJBDE-UHFFFAOYSA-L

InChI

1S/Ca.2H2O/h;2*1H2/q+2;;/p-2

SMILES string

O[Ca]O

assay

99.995% trace metals basis

form

powder

reaction suitability

core: calcium

impurities

<3% calcium carbonate

density

2.24 g/mL at 25 °C (lit.)

Quality Level

100

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Application

Calcium hydroxide may be used for the preparation of nanocrystalline hydroxyapatite by sonochemical technique.Ca(OH)2 may be used as a catayst in the pyrolysis of pinewood in a fixed bed reactor.

General description

This strong base dissociates into calcium and hydroxyl ions in an aqueous solution.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

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

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV3734
MKCR3537
MKCN2764
MKCF9538
MKBC4261V

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Calcium hydroxide: a review.
Farhad A and Mohammadi Z
International Dental Journal, 55(5) (2005)
Structural and proton transport studies on nanocrystalline [Ca10 (PO4) 6 (OH) 2](HAp), HAp?Nafion? composite, and natural human bone.
Jena H, et al.
Physica Status Solidi (A): Applied Research, 206(11), 2536-2541 (2009)
Pyrolysis of pine wood in a slowly heating fixed-bed reactor: Potassium carbonate versus calcium hydroxide as a catalyst
Wang Z, et al.
Fuel Processing Technology, 91(8), 942-950 (2010)
Caryn S Seney et al.
Chemical research in toxicology, 33(11), 2834-2844 (2020-10-29)
Elemental mercury (Hg0) contamination in artisanal and small-scale gold mining (ASGM) communities is widespread, and Hg0-contaminated tailings are often reprocessed with cyanide (-CN) to extract residual gold remaining after amalgamation. Hg0 reacts with -CN under aerobic conditions to produce Hg(CN)42-
Lisbet Mailin López González et al.
Bioresource technology, 131, 250-257 (2013-01-29)
Different pre-treatment severities by thermo-alkaline conditions (100°C, Ca(OH)2) on press mud were evaluated for different pre-treatment time and lime loading. COD solubilization and the methane yield enhancement were assessed. The biochemical methane potential was determined in batch assays under mesophilic
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