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ICSC 0657 - n-HEPTANE
n-HEPTANE
ICSC: 0657
Peer-Review Status: 26.06.2015 Validated
Heptane
CAS #: 142-82-5 RTECS #: MI7700000
UN #: 1206
EC #: 601-008-00-2
EINECS #: 205-563-8
    Formula: C7H16 / CH3(CH2)5CH3
Molecular mass: 100.2

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Highly flammable.  NO open flames, NO sparks and NO smoking.  Use alcohol-resistant foam, dry powder, carbon dioxide, water spray. 
EXPLOSION Vapour/air mixtures are explosive.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding). Do NOT use compressed air for filling, discharging, or handling. Use non-sparking handtools.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS!   
Inhalation Cough. Incoordination. Dizziness. Weakness. Nausea. Drowsiness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Swelling. Pain.  Protective gloves.  Rinse and then wash skin with water and soap. Refer for medical attention if skin irritation occurs. 
Eyes Redness.  Wear safety goggles 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 Aspiration hazard! Sore throat. Abdominal pain. Headache. Dizziness. Nausea. Vomiting. Unconsciousness.  Do not eat, drink, or smoke during work.  Rinse mouth. Give nothing to drink. Do NOT induce vomiting. Refer immediately for medical attention. See Notes. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Consult an expert! Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Do NOT wash away into sewer. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Carefully collect remainder.  Marine pollutant. 
EC Classification
Symbol: F, Xn, N; R: 11-38-50/53-65-67; S: (2)-9-16-29-33-60-61-62; Note: C 
UN Classification
UN Hazard Class: 3; UN Pack Group: II 
GHS Classification
Signal: Danger
Highly flammable liquid and vapour
May be fatal if swallowed and enters airways
Causes skin irritation
May cause drowsiness or dizziness
Very toxic to aquatic life with long lasting effects 
flam;flameexcl mark;warncancer;health hazenviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H1; F3; R0.  Fireproof. Separated from strong oxidants. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 

IMPORTANT DATA
Physical State; Appearance
VOLATILE COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. As a result of flow, agitation, etc., electrostatic charges can be generated. 

Chemical dangers
Reacts violently with strong oxidants. This generates fire and explosion hazard. Attacks many plastics. 

Occupational exposure limits
TLV: 400 ppm as TWA; 500 ppm as STEL;. 

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

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. 

Effects of short-term exposure
The substance is irritating to the skin. The vapour is irritating to the respiratory tract. If swallowed the substance easily enters the airways and could result in aspiration pneumonitis. The substance may cause effects on the central nervous system. 

Effects of long-term or repeated exposure
The substance defats the skin, which may cause dryness or cracking. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 98.4°C
Melting point: -90.7°C
Density (at 20°C): 0.68 g/ml
Solubility in water, mg/l at 25°C: 2.2 (very poor)
Vapour pressure, kPa at 20°C: 4.6
Relative vapour density (air = 1): 3.5
Flash point: -7°C c.c.
Auto-ignition temperature: 220°C
Explosive limits, vol% in air: 0.8-6.7
Octanol/water partition coefficient as log Pow: 4.66  
The substance is toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. Bioaccumulation of this chemical may occur in fish. It is strongly advised not to let the chemical enter into the environment. 

NOTES
The odour warning when the exposure limit value is exceeded is insufficient.
The symptoms of chemical pneumonitis do not become manifest until a few hours or even days have passed. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
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