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NICOTINIC ACIDICSC: 1702
3-Pyridinecarboxylic acid
3-Carboxypyridine
Pyridine-beta-carboxylic acid
Niacin
April 2008
CAS #: 59-67-6
EC Number: 200-441-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Prevent deposition of dust. Closed system, dust explosion-proof electrical equipment and lighting.  Use water spray, foam, powder, carbon dioxide.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough.  Avoid inhalation of dust.  Fresh air, rest. 
Skin   Protective gloves.  Rinse skin with plenty of water or shower. 
Eyes Redness.  Wear safety goggles.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion Flushing of the face.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. 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. 

According to UN GHS Criteria

WARNING
Causes eye irritation
Harmful to aquatic life 

Transportation
UN Classification
 

STORAGE
Store in an area without drain or sewer access. Separated from strong acids, bases and oxidants. 
PACKAGING
 
NICOTINIC ACID ICSC: 1702
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE CRYSTALS OR CRYSTALLINE POWDER. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
On combustion, forms toxic gases including nitrogen oxides. Reacts with oxidants, strong acids and bases. 

Formula: C6H5NO2/HOOC5H4N
Molecular mass: 123.1
Melting point: 236.6°C
Density: 1.5 g/cm³
Solubility in water, g/100ml at 20°C: 1.8 (moderate)
Flash point: 193°C c.c.
Auto-ignition temperature: 580°C
Explosive limits, vol% in air: 25 - ?
Octanol/water partition coefficient as log Pow: -2.43  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

Effects of short-term exposure
The substance is mildly irritating to the eyes. 

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

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       Nicotinic acid (SIDS)