Skip to Content
Merck
All Photos(4)

Documents

Safety Information

31219

Sigma-Aldrich

Calcium hydroxide

puriss. p.a., reag. Ph. Eur., ≥96%

Sign Into View Organizational & Contract Pricing
All Photos(4)

About This Item

Linear Formula:
Ca(OH)2
CAS Number:
1305-62-0
Molecular Weight:
74.09
EC Number:
215-137-3
MDL number:
MFCD00010901
UNSPSC Code:
12352305
PubChem Substance ID:
329753684
NACRES:
NA.21

Agency

USP/NF
reag. Ph. Eur.

grade

puriss. p.a.

Assay

≥96%

form

powder

impurities

≤0.03% insoluble in hydrochloric acid
≤3% CaCO3

pH

12.4-12.6 (20 °C)

density

2.24 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤500 mg/kg

cation traces

Cu: ≤5 mg/kg
Fe: ≤500 mg/kg
Pb: ≤2 mg/kg
Zn: ≤5 mg/kg

SMILES string

O[Ca]O

InChI

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

InChI key

AXCZMVOFGPJBDE-UHFFFAOYSA-L

Looking for similar products? Visit Product Comparison Guide

General description

Calcium hydroxide is a calcium salt. It is employed in various pulp-capping agents and its influence on healthy and inflamed pulp has been described. Its antibacterial effects have been investigated. It has been employed in endodontic treatment.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H315,H318,H335

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

31219-6X500G:
31219-VAR:
31219-25KG:
31219-6X1KG:
31219-100G:4548173958705
31219-1KG:4548173958712
31219-6X100G:
31219-500G:4548173958729
31219-25KG-H:
31219-BULK:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

The colorimetric determination of lactic acid in biological material.
Barker SB and Summerson WH.
The Journal of Biological Chemistry, 138(2), 535-554 (1941)
The antibacterial effect of camphorated paramonochlorophenol, camphorated phenol and calcium hydroxide in the treatment of infected root canals.
A Bystrom et al.
Endodontics & dental traumatology, 1(5), 170-175 (1985-10-01)
U Schröder
Journal of dental research, 64 Spec No, 541-548 (1985-04-01)
The findings from the recent literature on pulpal cell responses to the application of calcium hydroxide to exposed pulps are described. The effect of calcium hydroxide on healthy and inflamed pulp is discussed. The effect of incorporation of calcium hydroxide
Tronstad L, et al.
Journal of Endodontics, 7(1), 17-21 (1981)
F H van de Sande et al.
Journal of dental research, 92(7 Suppl), 78S-83S (2013-05-22)
This practice-based retrospective study evaluated the survival of resin composite restorations in posterior teeth, focusing on the influence of potential patient risk factors. In total, 306 posterior composite restorations placed in 44 adult patients were investigated after 10 to 18
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service