ICSC 1262 - 2-METHYLPENTANE

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2-METHYLPENTANE	ICSC: 1262 (May 2018)
Isohexane Dimethylpropylmethane

CAS #: 107-83-5

UN #: 1208 (hexanes)

EC Number: 203-523-4

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Highly flammable. Vapour/air mixtures are explosive.	NO open flames, NO sparks and NO smoking. 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.	Use alcohol-resistant foam, powder, carbon dioxide, water. In case of fire: keep drums, etc., cool by spraying with water.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Headache. Dizziness. Unconsciousness.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	Redness.	Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Aspiration hazard! Abdominal pain. Nausea. Vomiting. Diarrhoea. Further see Inhalation.	Do not eat, drink, or smoke during work.	Rinse mouth. Give nothing to drink. Do NOT induce vomiting. Refer immediately for medical attention.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: filter respirator for organic gases and vapours of low boiling point adapted to the airborne concentration of the substance. Remove all ignition sources. Ventilation. Do NOT wash away into sewer. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable non-plastic containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Wash away remainder with plenty of water. Then store and dispose of according to local regulations.	According to UN GHS Criteria Highly flammable liquid and vapour Causes mild skin irritation May cause drowsiness or dizziness May be fatal if swallowed and enters airways Toxic to aquatic life with long lasting effects Transportation UN Classification UN Hazard Class: 3; UN Pack Group: II
STORAGE
Fireproof. Cooled. Separated from strong oxidants. Store in an area without drain or sewer access. Do NOT store or transport in containers made from plastic.
PACKAGING

2-METHYLPENTANE

ICSC: 1262

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance 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 oxidants. This generates fire and explosion hazard. Attacks plastics.	Formula: C₆H₁₄ / CH₃CH(CH₃)(CH₂)₂CH₃ Molecular mass: 86.2 Boiling point: 60°C Melting point: -153°C Relative density (water = 1): 0.65 Solubility in water: none Vapour pressure, kPa at 20°C: 23 Relative vapour density (air = 1): 3.0 Flash point: -32°C c.c. Auto-ignition temperature: 264°C Explosive limits, vol% in air: 1-7 Octanol/water partition coefficient as log Pow: 3.2 (estimated)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
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 oxidants. This generates fire and explosion hazard. Attacks plastics.

Formula: C₆H₁₄ / CH₃CH(CH₃)(CH₂)₂CH₃
Molecular mass: 86.2
Boiling point: 60°C
Melting point: -153°C
Relative density (water = 1): 0.65
Solubility in water: none
Vapour pressure, kPa at 20°C: 23
Relative vapour density (air = 1): 3.0
Flash point: -32°C c.c.
Auto-ignition temperature: 264°C
Explosive limits, vol% in air: 1-7
Octanol/water partition coefficient as log Pow: 3.2 (estimated)

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its vapour and through the skin. Effects of short-term exposure The substance and the vapour are mildly irritating to the eyes, respiratory tract and skin. If swallowed the substance easily enters the airways and could result in aspiration pneumonitis. The substance may cause effects on the central nervous system. This may result in lowering of consciousness.	Inhalation risk A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure The substance defats the skin, which may cause dryness or cracking. Repeated or prolonged contact with skin may cause dermatitis.

EXPOSURE & HEALTH EFFECTS

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

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

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

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

OCCUPATIONAL EXPOSURE LIMITS
TLV: 500 ppm as TWA; 1000 ppm as STEL. MAK: 1800 mg/m³, 500 ppm; peak limitation category: II(2); pregnancy risk group: D

ENVIRONMENT
The substance is toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment.

NOTES

ADDITIONAL INFORMATION

EC Classification

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