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n-BUTYLAMINEICSC: 0374
1-Aminobutane
1-Butanamine
Monobutylamine
July 1997
CAS #: 109-73-9
UN #: 1125
EC Number: 203-699-2

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire.  Vapour/air mixtures are explosive.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting.  Use water in large amounts, powder, alcohol-resistant foam, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS PREVENTION FIRST AID
Inhalation Sore throat. Cough. Burning sensation. Headache. Flushing of the face. Vomiting. Dizziness. Shortness of breath. Laboured breathing. Symptoms may be delayed. See Notes.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin MAY BE ABSORBED! Pain. Redness. Blisters. Skin burns.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Pain. Redness. Severe deep burns. Loss of vision.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Burning sensation. Abdominal pain. Diarrhoea. Nausea. Vomiting. Shock or collapse.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Ventilation. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 3; UN Subsidiary Risks: 8; UN Pack Group: II 

STORAGE
Fireproof. Separated from food and feedstuffs. See Chemical Dangers. 
PACKAGING
Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs. 
n-BUTYLAMINE ICSC: 0374
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. TURNS YELLOW ON STANDING. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
Decomposes on heating and on burning. This produces toxic fumes including nitrogen oxides. The substance is a weak base. Reacts with strong oxidants and acids. This generates fire and explosion hazard. Attacks some metals in the presence of water. 

Formula: C4H11N / CH3(CH2)3NH2
Molecular mass: 73.1
Boiling point: 78°C
Melting point: -50°C
Relative density (water = 1): 0.74
Solubility in water: miscible
Vapour pressure, kPa at 20°C: 10.9
Relative vapour density (air = 1): 2.5
Flash point: -12°C c.c.
Auto-ignition temperature: 312°C
Explosive limits, vol% in air: 1.7-9.8
Octanol/water partition coefficient as log Pow: 0.86  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance and the vapour are corrosive to the eyes, skin and respiratory tract. Inhalation of the vapour may cause lung oedema. See Notes. The effects may be delayed. Medical observation is indicated. 

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. 

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


OCCUPATIONAL EXPOSURE LIMITS
TLV: 5 ppm as STEL; (skin).
MAK: 6.1 mg/m3, 2 ppm; peak limitation category: I(2); pregnancy risk group: C 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
The occupational exposure limit value should not be exceeded during any part of the working exposure.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: F, C; R: 11-20/21/22-35; S: (1/2)-3-16-26-29-36/37/39-45 

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    See Also:
       Toxicological Abbreviations