Methylene chloride |
Synonyms & Trade Names Dichloromethane, Methylene dichloride |
CAS No. 75-09-2 |
RTECS No. PA8050000 |
DOT ID & Guide 1593 160 |
FormulaCH2Cl2 |
Conversion 1 ppm = 3.47 mg/m3 |
IDLH Ca [2300 ppm]
See: 75092 |
Exposure Limits NIOSH REL: Ca See Appendix A
OSHA PEL: [1910.1052] TWA 25 ppm ST 125 ppm |
Measurement Methods
NIOSH 1005 , 3800;
OSHA 59 , 80
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with a chloroform-like odor. [Note: A gas above 104°F.] |
MW: 84.9 |
BP: 104°F |
FRZ: -139°F |
Sol: 2% |
VP: 350 mmHg |
IP: 11.32 eV |
Sp.Gr: 1.33 |
Fl.P: ? |
UEL: 23% |
LEL: 13% |
|
|
| Combustible Liquid |
Incompatibilities & Reactivities Strong oxidizers; caustics; chemically-active metals such as aluminum, magnesium powders, potassium & sodium; concentrated nitric acid |
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin; lassitude (weakness, exhaustion), drowsiness, dizziness; numb, tingle limbs; nausea; [potential occupational carcinogen] |
Target Organs Eyes, skin, cardiovascular system, central nervous system |
Cancer Site[in animals: lung, liver, salivary & mammary gland tumors] |
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: Eyewash, Quick drench |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations (See Appendix E)
NIOSH At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(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 |
| See also: INTRODUCTION See ICSC CARD: 0058 See MEDICAL TESTS: 0148 |
