Methyl Cellosolve®

Synonyms & Trade Names

EGME, Ethylene glycol monomethyl ether, Glycol monomethyl ether, 2-Methoxyethanol

CAS No.

109-86-4

RTECS No.

KL5775000

DOT ID & Guide

1188 127

Formula

CH₃OCH₂CH₂OH

Conversion

1 ppm = 3.11 mg/m³

IDLH

200 ppm
See: 109864

Exposure Limits

NIOSH REL

TWA 0.1 ppm (0.3 mg/m³) [skin]

OSHA PEL

TWA 25 ppm (80 mg/m³) [skin]

Measurement Methods

NIOSH 1403;
OSHA 53 , 79
See: NMAM or OSHA Methods

Physical Description

Colorless liquid with a mild, ether-like odor.

Molecular Weight

76.1

Boiling Point

256°F

Freezing Point

-121°F

Solubility

Miscible

Vapor Pressure

6 mmHg

Ionization Potential

9.60 eV

Specific Gravity

0.96

Flash Point

102°F

Upper Explosive Limit

14%

Lower Explosive Limit

1.8%

Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.

Incompatibilities & Reactivities

Strong oxidizers, caustics

Exposure Routes

inhalation, skin absorption, ingestion, skin and/or eye contact

Symptoms

irritation eyes, nose, throat; headache, drowsiness, lassitude (weakness, exhaustion); ataxia, tremor; anemic pallor; In Animals: reproductive, teratogenic effects

Target Organs

Eyes, respiratory system, central nervous system, blood, kidneys, reproductive system, hematopoietic system

Personal Protection/Sanitation

(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:No recommendation
Provide:Quick drench

First Aid

(See procedures)
Eye:Irrigate immediately
Skin:Water flush promptly
Breathing:Respiratory support
Swallow:Medical attention immediately

Respirator Recommendations

NIOSH

Up to 1 ppm:
(APF = 10) Any supplied-air respirator*

Up to 2.5 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*

Up to 5 ppm:
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece

Up to 100 ppm:
(APF = 1000) Any supplied-air respirator operated in a pressure-demand or other positive-pressure mode*

Up to 200 ppm:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode

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
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

Methyl Cellosolve®

NIOSH REL

OSHA PEL

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