ICSC 0767 - PARAFORMALDEHYDE

PARAFORMALDEHYDE	ICSC: 0767 (October 2006)
Polyoxymethylene Formagene Polymerised formaldehyde Formaldehyde polymer Paraform

CAS #: 30525-89-4

UN #: 2213

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Above 71°C explosive vapour/air mixtures may be formed. Finely dispersed particles form explosive mixtures in air.	NO open flames. Above 71°C use a closed system and ventilation. Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust. Prevent build-up of electrostatic charges (e.g., by grounding).	Use water spray, powder, alcohol-resistant foam, carbon dioxide.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat. Burning sensation. Laboured breathing.	Use 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.	Wear 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 refer for medical attention.
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. Refer for medical attention if you fell unwell.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment.	According to UN GHS Criteria DANGER Flammable solid Harmful if swallowed Fatal if inhaled Causes skin irritation Causes serious eye irritation May cause allergic skin reaction Transportation UN Classification UN Hazard Class: 4.1; UN Pack Group: III
STORAGE
Cool. Dry. Keep in a well-ventilated room. Separated from strong oxidants, strong bases and strong acids.
PACKAGING

PARAFORMALDEHYDE

ICSC: 0767

PHYSICAL & CHEMICAL INFORMATION
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 Decomposes on heating and on contact with acids, bases and oxidants. This produces flammable formaldehyde.	Formula: (CH₂O)_n.H₂O Decomposes at 120-180°C Relative density (water = 1): 1.5 Solubility in water: poor Vapour pressure, kPa at 25°C: <0.2 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

PHYSICAL & CHEMICAL INFORMATION

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
Decomposes on heating and on contact with acids, bases and oxidants. This produces flammable formaldehyde.

Formula: (CH₂O)_n.H₂O

Decomposes at 120-180°C
Relative density (water = 1): 1.5
Solubility in water: poor
Vapour pressure, kPa at 25°C: <0.2
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

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. Effects of short-term exposure The substance is severely irritating to the eyes, skin and respiratory tract.	Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. Effects of long-term or repeated exposure Repeated or prolonged contact may cause skin sensitization. See Notes.

EXPOSURE & HEALTH EFFECTS

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

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

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

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

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is harmful to aquatic organisms.

NOTES
See ICSC 0275.

ADDITIONAL INFORMATION

EC Classification

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    See Also:
       Toxicological Abbreviations