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MilliporeSigma

8.18715

Sigma-Aldrich

Paraformaldehyde

for synthesis

Synonym(s):

Paraformaldehyde

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About This Item

Linear Formula:
(CH2O)n
CAS Number:
30525-89-4
MDL number:
MFCD00133991
UNSPSC Code:
12352104
NACRES:
NA.22
Grade:
synthesis grade
Assay:
≥95% (acidimetric)
Technique(s):
immunofluorescence: suitable
Vapor pressure:
1.93 hPa ( 25 °C)

Key Documents

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grade

synthesis grade

Quality Level

200

vapor pressure

1.93 hPa ( 25 °C)

assay

≥95% (acidimetric)

form

solid

autoignition temp.

300 °C

potency

592 mg/kg LD50, oral (Rat)

expl. lim.

7-73 % (v/v)

technique(s)

immunofluorescence: suitable

pH

5.5 (20 °C in H2O, saturated solution)

mp

100-130 °C

density

1.4 g/cm3 at 20 °C

SMILES string

[O-]#[C+H2]

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

Application

  • Flame Retardants: Examines the use of paraformaldehyde in improving the performance of flame retardants without added antioxidants (P Sun, et al., 2024).

Other Notes

Replaces: PX0055-3

signalword

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 1B - Eye Dam. 1 - Flam. Sol. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

4.1B - Flammable solid hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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