441244
Aldrich

Paraformaldehyde

prilled, 95%

zoom

1 of 1

Synonym

Polyoxymethylene

Molecular Formula

HO(CH₂O)_nH

Molecular Weight

30.03 (as monomer)

CAS Number

30525-89-4

MDL number

MFCD00133991

PubChem Substance ID

24867646

Expand/Collapse All

Descriptions

Features and Benefits

Source of methanol-free formaldehyde.
Decomposes in hot water to give formaldehyde.

Packaging

1 kg in glass btl

3 kg in poly drum

1 kg packaged in clear glass bottles; 3 kg packaged in open-head poly drums

Application

Formaldehyde source to prepare phenol-, urea-, furfuryl alcohol-, resorcinol- and melamine-formaldehyde polymers for use in coatings, wood products, textiles and foundry resins.

Properties

vapor density

1.03 (vs air)

vapor pressure

<1.45 mmHg ( 25 °C)

assay

95%

form

prilled

autoignition temp.

572 °F

expl. lim.

73 %

120-170 °C(lit.)

transition temp

sublimation point 150 °C

solubility

alcohol and cold water: slightly soluble

ethers, hydrocarbons and carbon tetrachloride: insoluble

density

0.88 g/mL at 25 °C(lit.)

References

Reference

C.A. Williams, M.W. Chase, Stabilizes cell membranes and preserves cell morphology. Methods Immunol. Immunochem. New York 5, (1976)

Merck

Merck 13,7096

Beilstein

Beil. 1,IV,3017

reference

Aldrich MSDS 1, 1421:B / Corp MSDS 1 (2), 2681:B / FT-IR 2 (3), 4610:C / FT-IR 1 (1), 205:D / IR-Spectra (3), 125:C / IR-Spectra (2), 115:C / RegBook 1 (2), 3155:D / Sax 6, 2116 / Sigma FT-IR 1 (2), 819:C / Structure Index 1, 498:B:3

Safety

Hazard Codes

Risk Statements

20/22-37/38-40-41-43

Safety Statements

26-36/37/39-45

RIDADR

UN2213 4.1/PG 3

WGK Germany

RTECS

RV0540000

Flash Point(F)