alpha-Naphthylamine
1-Aminonaphthalene
C10H9N
Molecular mass: 143.2
ICSC # 0518
CAS # 134-32-7
RTECS # QM1400000
UN # 2077
EC # 612-020-00-2
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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.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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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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Blue lips or finger nails.
Blue skin.
Confusion.
Dizziness.
Headache.
Shortness of breath.
Weakness.
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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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MAY BE ABSORBED!
Redness.
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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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Redness.
Pain.
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Safety spectacles,
or eye protection in combination with breathing protection.
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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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Blue lips or fingernails.
Blue skin.
Dizziness.
Headache.
Nausea.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Do NOT wash away into sewer.
Sweep spilled substance into sealable containers.
Carefully collect remainder,
then remove to safe place.
Do NOT let this chemical enter the environment.
(Extra personal protection: P3 filter respirator for toxic particles).
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Dry.
Keep in the dark.
Well closed.
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Do not transport with food and feedstuffs.
Xn symbol
N symbol
R: 22-51/53
S: 2-24-61
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
WHITE CRYSTALS
, WITH CHARACTERISTIC ODOUR.
TURNS RED ON Exposure TO AIR, LIGHT AND MOISTURE.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on burning
producing
nitrogen oxides
and
carbon monoxide
.
The substance is a weak base.
Occupational Exposure Limits:
TLV not established.
MAK not established.
OSHA PEL: 1910.1004 See Appendix B
NIOSH REL: Ca See Appendix A
NIOSH IDLH: Ca N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation and through the skin
and by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.
Effects of Short-Term Exposure:
The substance
is mildly irritating to
the eyes and
the skin.
The substance may cause effects on the
blood
, resulting in
the formation of methaemoglobin.
The effects may be delayed.
Medical observation is indicated.
See Notes.
Effects of Long-Term or Repeated Exposure:
See Notes.
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Physical
Properties
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Boiling point: 300.8°C
Melting point: 50.0°C
Density: 1.12
g/cm3
Solubility in water:
none
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Vapour pressure, Pa at 20°C: 0.53
Relative vapour density (air = 1): 4.93
Flash point: 157°C c.c.
Auto-ignition temperature: 460°C
Octanol/water partition coefficient as log Pow: 2.25
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Environmental
Data
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The substance is harmful to aquatic organisms.
It is strongly advised not to let the chemical enter into the environment because it persists in the environment.
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N O T E S
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Depending on the degree of exposure, periodic medical examination is indicated.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Bladder cancers reported after occupational exposure to 1-naphthylamine may be due to contamination with 2-naphthylamine which is a human carcinogen.
Transport Emergency Card: TEC (R)-61G12c
NFPA Code: H2; F1; R0;
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ADDITIONAL INFORMATION
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ICSC: 0518
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1-NAPHTHYLAMINE
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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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