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ROSIN ICSC: 0358
Date of Peer Review: April 2004

Colophony
Gum rosin
CAS # 8050-09-7
RTECS # VL0480000
UN #
EC # 650-015-00-7
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible.
NO open flames.
Water spray, powder.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!

Inhalation Wheezing.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: P2 filter respirator for harmful particles.
EU Classification
Symbol: Xi
R: 43
S: (2-)-24-37
UN Classification

EMERGENCY RESPONSE STORAGE

Store in covered containers. Separated from strong oxidants.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
ROSIN ICSC: 0358
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
PALE YELLOW TO AMBER, FRAGMENTS OR POWDER, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on heating producing irritating fumes.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: As rosin core solder thermal decomposition products (colophony). Exposure by all routes should be carefully controlled to levels as low as possible. SEN; (ACGIH 2004).
MAK: Sh; (DFG 2003).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of fumes.

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered or as fumes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation exposure may cause asthma.
PHYSICAL PROPERTIES
Melting point: 100-150C
Density: 1.07 g/cm
Solubility in water: none
Flash point: 187C
ENVIRONMENTAL DATA

NOTES
Rosin is obtained from pine trees. Rosin is available as wood rosin, gum rosin or tall oil rosin. Anyone who has shown symptoms of asthma due to this substance should avoid all further contact with this substance.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999