1-Methoxy-2-propanol
1-Methoxy-propane-2-ol
1-Methoxy-2-hydroxypropane
Propylene glycol methyl ether
C4H10O2 / H3CCHOHCH2OCH3
Molecular mass: 90.1
ICSC # 0551
CAS # 107-98-2
RTECS # UB7700000
UN # 3092
EC # 603-064-00-3
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Flammable.
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NO open flames, NO sparks, and NO smoking.
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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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Explosion
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Above 38°C explosive vapour/air mixtures may be formed.
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Above 38°C use a closed system, ventilation, and explosion-proof electrical equipment.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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•Inhalation
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Cough.
Drowsiness.
Headache.
Sore throat.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Dry skin.
Redness.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Lacrimation.
Redness.
Pain.
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Safety spectacles,
or face shield.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Drowsiness.
Headache.
Nausea.
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Rinse mouth.
Do NOT induce vomiting.
Rest.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Collect leaking and spilled liquid in sealable containers as far as possible.
Wash away remainder with plenty of water.
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Fireproof.
Cool.
Keep in the dark.
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R: 10
S: 2-24
UN Hazard Class: 3
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
The substance can presumably form explosive peroxides.
Reacts with strong oxidants, acid chlorides, acid anhydrides, aluminium and copper.
Occupational Exposure Limits:
TLV: 100 ppm; 369 mg/m3 (as TWA), 150 ppm; 553 mg/m3 (STEL) (ACGIH 1997).
EU OEL: 100 ppm, 375 mg/m3 as TWA; 150 ppm, 568 mg/m3 as STEL; (skin) (EU 2000).
OSHA PEL: none
NIOSH REL: TWA 100 ppm (360 mg/m3) ST 150 ppm (540 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour or its aerosol,
through the skin 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 and the vapour (in high concentrations)
irritates
the eyes,
the skin and
the respiratory tract.
Exposure to very high concentrations may result in central nervous system depression.
Effects of Long-Term or Repeated Exposure:
The liquid defats the skin.
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Physical
Properties
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Boiling point: 120°C
Melting point: -96°C
Relative density (water = 1): 0.92
Solubility in water: very good
Vapour pressure, kPa at 20°C: 1.2
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Relative density of the vapour/air-mixture at 20°C (air = 1): 1.03
Flash point: 38°C
Auto-ignition temperature: 270°C
Explosive limits, vol% in air: 1.9-13.1
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Environmental
Data
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N O T E S
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Commercial product may contain impurities which may alter toxic properties.
Check for peroxides prior to distillation; eliminate if found.
Dowanol 33 B, Dowanol PM, Dowtherm 209, Poly-Solv MPM Solvent, PolySolvent M, Propasol Solvent M, UCAR PM Solvent, Ucar Triol HG-170 are trade names.
NFPA Code: H0; F3; R0;
Card has been partially updated in January 2008: see Occupational Exposure Limits.
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ADDITIONAL INFORMATION
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ICSC: 0551
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PROPYLENE GLYCOL MONOMETHYL ETHER
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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