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Safety Information

47629

Sigma-Aldrich

Formaldehyde solution

puriss. p.a., ACS reagent, ≥36.5% in H2O (T)

Synonym(s):

Formalin

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About This Item

Linear Formula:
HCHO
CAS Number:
Molecular Weight:
30.03
Beilstein:
1209228
MDL number:
UNSPSC Code:
12190000

grade

ACS reagent
puriss. p.a.

vapor density

1.03 (vs air)

vapor pressure

52 mmHg ( 37 °C)

autoignition temp.

572 °F

contains

~10% methanol as stabilizer

concentration

≥36.5% in H2O (T)

impurities

acid, none detected
≤0.03% free acid (as HCOOH)

ign. residue

≤0.005% (as SO4)

refractive index

n20/D 1.377

density

1.09 g/mL at 20 °C
1.09 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤20 mg/kg

cation traces

Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤100 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤1 mg/kg

SMILES string

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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Caution

may contain precipitate (paraformaldehyde)

Other Notes

For the fixation of DNA and RNA and methylation of lysine side-chain in presence of sodium borohydrides; C.S. Tsai, Y.-H. Tsai, G. Lauzon, S.T. Cheng

replaced by

Product No.
Description
Pricing

Signal Word

Danger

Hazard Classifications

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

Target Organs

Eyes,Central nervous system, Respiratory system

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

147.2 °F - closed cup

Flash Point(C)

64 °C - closed cup

Regulatory Information

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Biochemistry, 13, 440-440 (1973)

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