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Key Documents

Safety Information

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

vapor pressure

1.93 hPa ( 25 °C)

Quality Level

200

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

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).

Linkage

Replaces: PX0055-3

Signal Word

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 Code

4.1B - Flammable solid hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

Certificates of Analysis (COA)

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