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Sigma-Aldrich

Formaldehyde solution

puriss. p.a., ACS reagent, ≥36.5%

Synonym(s):

Formalin

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About This Item

Linear Formula:
HCHO
CAS Number:
50-00-0
Molecular Weight:
30.03
Beilstein/REAXYS Number:
1209228
MDL number:
MFCD00003274
UNSPSC Code:
12190000
PubChem Substance ID:
57648778

grade

ACS reagent
puriss. p.a.

Quality Level

200

vapor density

1.03 (vs air)

vapor pressure

52 mmHg ( 37 °C)

form

powder

autoignition temp.

572 °F

contains

~10% methanol as stabilizer

concentration

≥36.5%

impurities

≤0.0002% heavy metals (as Pb)
≤0.6% (water)

ign. residue

≤0.005% (as SO4)

bp

97 °C

mp

-15 °C

density

1.09 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤1 mg/kg
sulfate (SO42-): ≤20 mg/kg

cation traces

Fe: ≤1 mg/kg

SMILES string

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

signalword

Danger

Hazard Classifications

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

target_organs

Eyes,Central nervous system, Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

133.0 °F - closed cup

flash_point_c

56.11 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
BCCB5724
BCBL6699V
1396184
SZBC0620
SZBB2800

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