Colophony
Gum rosin
ICSC # 0358
CAS # 8050-09-7
RTECS # VL0480000
EC # 650-015-00-7
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Water spray, powder.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
AVOID ALL CONTACT!
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•Inhalation
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Wheezing.
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Local exhaust or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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•Eyes
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Safety goggles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
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Store in covered containers.
Separated from
strong oxidants.
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Xi symbol
R: 43
S: 2-24-37
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Important Data
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Physical State; Appearance:
PALE YELLOW TO AMBER, FRAGMENTS OR POWDER
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing
irritating fumes
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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).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of fumes
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Inhalation Risk:
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered or as fumes.
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact may cause skin sensitization.
Repeated or prolonged inhalation exposure may cause asthma.
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Physical
Properties
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Melting point: 100-150°C
Density: 1.07
g/cm3
Solubility in water:
none
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Flash point: 187°C
Minimum ignition energy (NOT on card): 10mJ
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Environmental
Data
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N O T E S
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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.
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ADDITIONAL INFORMATION
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ICSC: 0358
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ROSIN
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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