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n-BUTYL ETHER ICSC: 1150
Date of Peer Review: April 1994

Di-n-butyl ether
1,1'-Oxybis(butane)
1-Butoxybutane
CAS # 142-96-1 C8H18O / (CH3(CH2)3)O
RTECS # EK5425000 Molecular mass: 130.2
UN # 1149
EC # 603-054-00-9
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Flammable.
NO open flames, NO sparks, and NO smoking. NO contact with hot surfaces.
AFFF, alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION Above 25C explosive vapour/air mixtures may be formed.
Above 25C use a closed system, ventilation, and explosion-proof electrical equipment. Prevent build-up of electrostatic charges (e.g., by grounding).
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT GENERATION OF MISTS!

Inhalation Cough. Drowsiness. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Dry skin. Redness.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes Redness. Pain.
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Burning sensation. Nausea. Sore throat.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Personal protection: filter respirator for organic gases and vapours.
Airtight.
EU Classification
Symbol: Xi
R: 10-36/37/38-52/53
S: (2-)-61
UN Classification
UN Hazard Class: 3
UN Pack Group: III
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1149 or 30GF1-III
NFPA Code: H 2; F 3; R 0;
Fireproof. Separated from incompatible materials: see Chemical Dangers. Cool. Keep in the dark. Store only if stabilized.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

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n-BUTYL ETHER ICSC: 1150
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID.

PHYSICAL DANGERS:
As a result of flow, agitation, etc., electrostatic charges can be generated.

CHEMICAL DANGERS:
The substance can form explosive peroxides, especially in anhydrous form. Reacts with oxidants. Reacts violently with nitrogen trichloride (NCl_3).

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour.

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes, the skin and the respiratory tract. The substance may cause effects on the central nervous system and liver.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin.
PHYSICAL PROPERTIES
Boiling point: 142C
Melting point: -95C
Relative density (water = 1): 0.8
Solubility in water: none (<0.1 g/100 ml)
Vapour pressure, kPa at 20C: 0.64
Relative vapour density (air = 1): 4.5
Relative density of the vapour/air-mixture at 20C (air = 1): 1.0
Flash point: 25C
Auto-ignition temperature: 194C
Explosive limits, vol% in air: 1.5-7.6
Octanol/water partition coefficient as log Pow: 3.08 (calc)
ENVIRONMENTAL DATA
This substance may be hazardous to the environment; special attention should be given to aquatic organisms.
NOTES
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert. Check for peroxides prior to distillation; eliminate if found.
Card has been partly updated in April 2005. See sections EU classification, Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2004