Merck
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15512

Sigma-Aldrich

Formaldehyde solution

meets analytical specification of USP, ≥34.5 wt. %

Synonym(s):
Formalin
Linear Formula:
HCHO
CAS Number:
Molecular Weight:
30.03
Beilstein:
1209228
Número MDL:
eCl@ss:
39021101
ID de la sustancia en PubChem:
NACRES:
NA.21

densidad de vapor

1.03 (vs air)

Nivel de calidad

200

presión de vapor

52 mmHg ( 37 °C)

ensayo

≥34.5 wt. %

temp. de autoignición

572 °F

calidad

meets analytical specification of USP

contiene

9.0-15.0% methanol as stabilizer (GC)

concentración

25-50%

impurezas

acidic reac. substances, complies
residual solvents, complies

residuo de ign.

≤0.01% (as SO4)

densidad

1.09 g/mL at 25 °C (lit.)

idoneidad

corresponds for identity

SMILES string

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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Descripción general

Formaldehyde solution commercially formaldehyde solution is an aqueous solution containing 37% formaldehyde and 8-10% methanol. Formaldehyde solution can be activated by adding the catalytic amount of lanthanide triflate. This activated formaldehyde solution was employed for the smooth hydroxymethylation reaction of silyl enol ethers. Formaldehyde solution reacts with silyl enol ethers to afford the corresponding hydroxymethylated adducts in high yields.

Aplicación

Formaldehyde solution was used to prepare the formaldehyde stock solution for the development of transparent sol-gels with entrapped sensitive and selective reagents for the detection of formaldehyde in air. It may be used in the preparation of nanocrystalline metal (Cu, Hg, Zn, Bi, Pb) sulfides having different shapes and different particle sizes.

Otras notas

The article number 15512-4X2.5L-R will be discontinued. Please order the single bottle 15512-2.5L-R which is physically identical with the same exact specifications.
The article number 15512-6X1L-R will be discontinued. Please order the single bottle 15512-1L-R which is physically identical with the same exact specifications.

Palabra de señalización

Danger

Clasificaciones de peligro

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

Órganos de actuación

Respiratory system

Código de clase de almacenamiento

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Punto de inflamabilidad F

143.6 °F

Punto de inflamabilidad C

62 °C


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.

EU REACH Annex XVII (Restriction List)

Certificate of Analysis

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Certificate of Origin

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