Merck
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252549

Sigma-Aldrich

Formaldehyde solution

ACS reagent, 37 wt. % in H2O, contains 10-15% Methanol as stabilizer (to prevent polymerization)

Synonym(s):
Formalin
Linear Formula:
HCHO
CAS Number:
Molecular Weight:
30.03
Beilstein:
1209228
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

grau

ACS reagent

Nível de qualidade

densidade de vapor

1.03 (vs air)

pressão de vapor

52 mmHg ( 37 °C)
52 mmHg ( 37 °C)

teor

36.5-38.0%

forma

liquid

temperatura de autoignição

572 °F

contém

10-15% Methanol as stabilizer (to prevent polymerization)

concentração

37 wt. % in H2O

Impurezas

≤0.006 meq/g Titr. acid

resíduo de ignição

≤0.005%

cor

APHA: ≤10

índice de refração

n20/D 1.3765

densidade

1.09 g/mL at 25 °C (lit.)

traços de ânion

chloride (Cl-): ≤5 ppm
sulfate (SO42-): ≤0.002%

traços de cátion

Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

adequação

suitable for manufacturing use (Laboratory chemicals)

SMILES string

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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Descrição geral

Formaldehyde (formalin) is produced by oxidation of methanol. It is made of 37% formaldehyde and impurities such as methanol, small amounts of formic acid, aldehydes and ketones. It is used as a denaturant in formaldehyde-agarose gel electrophoresis of RNA.

Aplicação

Formaldehyde solution has been used as a fixing agent to fix cells during immunofluorescence imaging and for cross-linking cells during chromatin immunoprecipitation (ChIP) assay.
Formaldehyde solution has been used for cross-linking/fixing of cells in ChIP (chromatin immunoprecipitation) assay. It has been used for fixing of cells for imaging.

Embalagem

25, 100, 100, 150, 500, 500, 500 mL
1, 1, 2.5, 2.5, 3, 4 L in glass bottle
60 kg

forma física

This product is a solution of approximately 37% by weight of formaldehyde gas in water.

Outras notas

The article number 252549-4X2.5L will be discontinued. Please order the single bottle 252549-2.5L which is physically identical with the same exact specifications.
The article number 252549-6X1L will be discontinued. Please order the single bottle 252549-1L which is physically identical with the same exact specifications.

Palavra indicadora

Danger

Classificações de perigo

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Flam. Liq. 3 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 1 - STOT SE 3

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

3 - Flammable liquids

WGK

WGK 3

Ponto de fulgor (ºF)

132.8 °F - closed cup

Ponto de fulgor (ºC)

56 °C - closed cup

Certificate of Analysis

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Certificate of Origin

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