1,5-Dihydroxynaphthalene
Naphthalene-1,5-diol
C10H8O2 / C10H6(OH)2
Molecular mass: 160.2
ICSC # 1604
CAS # 83-56-7
RTECS # QJ4740000
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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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•Inhalation
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Protective gloves.
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Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
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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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Rinse mouth.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Personal protection: P1 filter respirator for inert particles.
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
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Separated from
strong oxidants.
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Important Data
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Physical State; Appearance:
ORANGE
POWDER
Physical Dangers:
Chemical Dangers:
On combustion, forms toxic fumes.
Reacts
with
strong oxidants
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Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by ingestion.
Inhalation Risk:
Effects of Short-Term Exposure:
The substance
is mildly irritating to
the eyes
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Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Melting point (decomposes): 250°C
Solubility in water, g/100 ml at 20°C: 0.06
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Flash point: 252°C c.c.
Octanol/water partition coefficient as log Pow: 1.82
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Environmental
Data
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N O T E S
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Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
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ADDITIONAL INFORMATION
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ICSC: 1604
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1,5-NAPHTHALENEDIOL
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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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