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2-AMINOPHENOLICSC: 0824
2-Amino-1-hydroxybenzene
o-Hydroxyaniline
o-Aminophenol
October 2005
CAS #: 95-55-6
UN #: 2512
EC Number: 202-431-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames.    Use alcohol-resistant foam, carbon dioxide, water spray, powder.   

 STRICT HYGIENE!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation See Ingestion.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED!  Protective gloves. Protective clothing.  Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Blue lips, fingernails and skin. Confusion. Convulsions. Cough. Dizziness. Headache. Laboured breathing. Nausea. Unconsciousness. Symptoms may be delayed. See Notes.  Do not eat, drink, or smoke during work.  Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: chemical protection suit and particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered sealable 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

 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 

STORAGE
Store in an area without drain or sewer access. Well closed. Separated from oxidants and food and feedstuffs. 
PACKAGING
Do not transport with food and feedstuffs. 
2-AMINOPHENOL ICSC: 0824
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-WHITE CRYSTALS. TURNS DARK ON EXPOSURE TO AIR OR LIGHT. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic fumes of nitrogen oxides. Reacts violently with oxidants. This generates fire and explosion hazard. 

Formula: C6H7NO / C6H4(OH)(NH2)
Molecular mass: 109.1
Decomposes at 170-174°C
Density: 1.3 g/cm³
Solubility in water, g/100ml at 20°C: 1.7
Vapour pressure: negligible
Relative vapour density (air = 1): 3.77
Flash point: >175°C c.c.
Auto-ignition temperature: 190°C
Octanol/water partition coefficient as log Pow: 0.62  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by ingestion, through the skin and by inhalation of its aerosol. 

Effects of short-term exposure
The substance may cause effects on the blood. This may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated. 

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

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
This substance may be hazardous to the environment. Special attention should be given to aquatic organisms. 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn; R: 20/22-68; S: (2)-28-36/37 

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    See Also:
       Toxicological Abbreviations