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Sigma-Aldrich

Calcium hydroxide

puriss., meets analytical specification of Ph. Eur., USP, FCC, 95-100.5% (complexometric)

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About This Item

Fórmula linear:
Ca(OH)2
Número CAS:
1305-62-0
Peso molecular:
74.09
Número CE:
215-137-3
Número MDL:
MFCD00010901
Código UNSPSC:
12352305
ID de substância PubChem:
329749601
NACRES:
NA.21

grau

puriss.

Ensaio

95-100.5% (complexometric)

forma

powder

qualidade

meets analytical specification of Ph. Eur., USP, FCC

Impurezas

≤0.2% insoluble in hydrochloric acid
≤2.5% subst. not precip. by ammonium oxalate (as SO4)

pH

12.4-12.6 (20 °C)

densidade

2.24 g/mL at 25 °C (lit.)

traços de ânion

fluoride (F-): ≤50 mg/kg

traços de cátion

As: ≤3 mg/kg
Cu: ≤10 mg/kg
Fe: ≤1000 mg/kg
Pb: ≤2 mg/kg
Zn: ≤10 mg/kg

cadeia de caracteres SMILES

O[Ca]O

InChI

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

chave InChI

AXCZMVOFGPJBDE-UHFFFAOYSA-L

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Pictogramas

CorrosionExclamation mark
GHS05,GHS07

Palavra indicadora

Danger

Frases de perigo

H315,H318,H335

Classificações de perigo

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

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

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Nikte Gómez-Ortíz et al.
ACS applied materials & interfaces, 5(5), 1556-1565 (2013-01-26)
The presence and deteriorating action of microbial biofilms on historic stone buildings have received considerable attention in the past few years. Among microorganisms, fungi are one of the most damaging groups. In the present work, antimicrobial surfaces were prepared using
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
P Sangwan et al.
International endodontic journal, 46(1), 3-19 (2012-08-15)
Calcium hydroxide has been used extensively in dentistry for a century. Despite its widespread use as a pulp-capping agent, its mechanisms of action still remain ambiguous. Understanding its modes of action will lead to a broader understanding of the mechanisms
Z Mohammadi et al.
International endodontic journal, 44(8), 697-730 (2011-05-04)
Calcium hydroxide has been included within several materials and antimicrobial formulations that are used in a number of treatment modalities in endodontics. These include, inter-appointment intracanal medicaments, pulp-capping agents and root canal sealers. Calcium hydroxide formulations are also used during
J F Siqueira et al.
International endodontic journal, 32(5), 361-369 (1999-11-07)
Literature review The primary function of calcium hydroxide as a routine intracanal medicament is to provide antimicrobial activity. However, the mechanisms of antimicrobial activity of calcium hydroxide are not well known. Physicochemical properties of this substance may limit its effectiveness
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