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Dipropylene glycol methyl ether

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Synonyms & Trade Names
Dipropylene glycol monomethyl ether, Dowanol® 50B
CAS No.
34590-94-8
RTECS No.
JM1575000
DOT ID & Guide
Formula
CH₃OC₃H₆OC₃H₆OH
Conversion
1 ppm = 6.06 mg/m3
IDLH
600 ppm
See: 34590948
Exposure Limits
NIOSH REL
TWA 100 ppm (600 mg/m3) ST 150 ppm (900 mg/m3) [skin]
OSHA PEL
TWA 100 ppm (600 mg/m3) [skin] See Appendix G
Measurement Methods
NIOSH S69 (II-2) , 2554
See: NMAM or OSHA Methods
Physical Description
Colorless liquid with a mild, ether-like odor.
Molecular Weight
148.2
Boiling Point
408°F
Freezing Point
-112°F
Solubility
Miscible
Vapor Pressure
0.5 mmHg
Ionization Potential
?
Specific Gravity
0.95
Flash Point
180°F
Upper Explosive Limit
3.0%
Lower Explosive Limit
(392°F): 1.1%
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
Strong oxidizers
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, nose, throat; lassitude (weakness, exhaustion), dizziness, headache
Target Organs
Eyes, respiratory system, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:No recommendation
Eyes:No recommendation
Wash skin:No recommendation
Remove:No recommendation
Change:No recommendation
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water wash promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH/OSHA

Up to 600 ppm:
(APF = 10) Any supplied-air respirator
(APF = 50) Any self-contained breathing apparatus with a full facepiece

Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0884
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health