Paraformaldehyde
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Paraformaldehyde
structure -
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CAS No:
30525-89-4
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Chemical Name:
Paraformaldehyde
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Synonyms:
Paraformaldehyde;Flo-Mor;Paraform;Aldacide;TransFix;Granuform;PFA;Granuform 96;WANPFA 92;Granuform M;Granuform 91;53026-80-5;104512-58-5;104512-63-2;104814-22-4;1417997-02-4
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CAS No:
Description
Paraformaldehyde is a white crystalline solid.Irritating odor. The term “trioxane” applies specifically tothis trimer (CH2O)3 but paraformaldehyde is applied bothto trioxane and other low polymers or oligomers of formaldehyde.
Characteristics
17.07000
-0.88
Solids containing varying amounts of formaldehyde, probably as paraformaldehyde (polymers of formula HO(CH2O)xH where x averages about 30). A hazard to the environment. Immediate steps should be taken to limit spread to the environment.
1.46 g/cm3
164 °C (decomp)
135-136 °C @ Press: 13 Torr
39.9±6.3 °C
1.364
sparingly soluble
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Storage class (TRGS 510): Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects. /Formaldehyde solution, 36.5-38%/
<1.45 mm Hg ( 25 °C)
1.04
LD50 orally in Rabbit: 592 mg/kg
Flammable Gas
Explosive limits , vol% in air: 7.0-73.0
Pungent, suffocating odor
pH: 2.8 to 4.0 /Formaldehyde soln/
13.3(at 25 °C)
Safety Information
III
4.1
UN 2213
3
R20/22;R36/37/38;R40;R43
S24-S26-S36/37/39-S45
RV0540000
Xn:Harmful
Cool. Dry. Keep in a well-ventilated room. Separated from strong oxidants, strong bases and strong acids.
Stable. Incompatible with strong acids, organic acids, strong oxidizing agents, oxides, alkalies, strong bases, amines. Combustible. Dust may form an explosive mixture with air. Liberates poisonous gases on combustion.
P210-P261-P280-P305 + P351 + P338
H228-H302 + H332-H315-H317-H318-H335-H351
Paraformaldehyde Use and Manufacturing
For disinfecting sickrooms, clothing, linen, and sickroom utensils. Active ingredient of contraceptive creams. Also used as fumigant; in dentistry; in manufacture of synthetic resins and artificial horn or ivory. Paraformaldehyde is used as a agricultural chemical, fungicide,bactericide, and wood preservative.
Price Analysis
- Data: 2026-01-02
- Price: 5000.00Yuan/ton
- Change: 0
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