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PARAFORMALDEHYDE ICSC: 0767
October 2006
Polyoxymethylene
Formagen
Polymerised formaldehyde
Formaldehyde polymer
Paraform
PDF for printing Explanation of fields
CAS No: 30525-89-4
RTECS No: RV0540000
UN No: 2213
    (CH2O)n.H2O

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. NO open flames. Powder, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION Above 71°C explosive vapour/air mixtures may be formed. Finely dispersed particles form explosive mixtures in air. Above 71°C use a closed system, ventilation. Prevent deposition of dust: closed system, dust-explosion proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding).  
 
EXPOSURE   PREVENT DISPERSION OF DUST!  
Inhalation Cough. Sore throat. Burning sensation. Laboured breathing. Local exhaust or breathing protection. Fresh air, rest. Half-upright position. Refer for medical attention.
Skin Redness. Pain. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Redness. Pain. Burns Safety goggles, or eye protection in combination with breathing protection if powder. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Burning sensation in the throat and chest. Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Seek medical attention if you feel unwell

SPILLAGE DISPOSAL PACKAGING & LABELLING
Personal protection: P2 filter respirator for harmful particles. Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. UN classification
UN Hazard Class: 4.1
UN Pack Group: III
GHS classification
Signal: Danger
Flame-Skull
Flammable solid
Harmful if swallowed
Fatal if inhaled dust
Causes skin irritation
Causes serious eye irritation
May cause allergic skin reaction


EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-41GF1-II+III
NFPA Code: H3; F2; R1
Cool. Dry. Keep in a well-ventilated room. Separated from strong oxidants, strong bases and strong acids.

IMPORTANT DATA
Physical State; Appearance
WHITE SOLID IN VARIOUS FORMS, WITH PUNGENT ODOUR.

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

Chemical dangers
The substance decomposes on heating or on contact with acids, bases and oxidants producing flammable formaldehyde.

Occupational exposure limits
TLV not established.
MAK not established.

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion.

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered

Effects of short-term exposure
The substance is severely irritating to the eyes, the skin and the respiratory tract.

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. See Notes.


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point (decomposes): 120-180°C
Relative density (water = 1): 1.5
Solubility in water: poor
Vapour pressure, kPa at 25°C: <0.16
Relative vapour density (air = 1): 1.03
Flash point: 71°C c.c.
Auto-ignition temperature: 300°C
Explosive limits, vol% in air: 7.0-73.0
The substance is harmful to aquatic organisms.

NOTES
Also consult ICSC 0275 (formaldehyde).

IPCS
International
Programme on
Chemical Safety
WHO ILO UNEP EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

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