Formalin (as formaldehyde) |
Synonyms & Trade Names Formaldehyde solution [Note: Formalin is an aqueous solution that is 37% formaldehyde by weight; inhibited solutions usually contain 6-12% methyl alcohol. Also see specific listings for Formaldehyde and Methyl alcohol.] |
CAS No. |
RTECS No. |
DOT ID & Guide 1198 132
2209 132 |
| |
Conversion |
IDLH Ca [20 ppm]
See: IDLH INDEX |
Exposure Limits NIOSH REL: Ca TWA 0.016 ppm C 0.1 ppm [15-minute] See Appendix A
OSHA PEL: [1910.1048] TWA 0.75 ppm ST 2 ppm |
Measurement Methods
NIOSH 2016 , 2541 , 3500 , 3800;
OSHA ID205 , 52
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with a pungent odor. |
MW: Varies |
BP: 214°F |
FRZ: ? |
Sol: Miscible |
VP: 1 mmHg |
IP: ? |
| Sp.Gr(77°F): 1.08 |
Fl.P: 185°F |
UEL: 73% |
LEL: 7% |
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| Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F. |
Incompatibilities & Reactivities Strong oxidizers, alkalis & acids; phenols; urea; oxides; isocyanates; caustics; anhydrides |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, nose, throat, respiratory system; lacrimation (discharge of tears); cough; wheezing, dermatitis; [potential occupational carcinogen] |
Target Organs Eyes, skin, respiratory system |
Cancer Site[nasal cancer] |
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: Water flush 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 canister providing protection against the compound of concern
Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0695 See MEDICAL TESTS: 0110 |
