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| Formalin (as formaldehyde) | CAS | ||
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RTECS | ||
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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.] |
DOT ID & Guide 1198 132 2209 132 |
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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 | |||
| IDLH Ca [20 ppm] See: IDLH INDEX | Conversion | ||
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Physical Description Colorless liquid with a pungent odor. |
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MW: Varies |
BP: 214°F |
FRZ: ? |
Sol: Miscible |
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VP: 1 mmHg |
IP: ? |
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Sp.Gr(77°F): 1.08 |
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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. | |||
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Incompatibilities & Reactivities Strong oxidizers, alkalis & acids; phenols; urea; oxides; isocyanates; caustics; anhydrides |
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Measurement Methods NIOSH 2016, 2541, 3500, 3800; OSHA ID205, 52 See: NMAM or OSHA Methods |
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Personal Protection & Sanitation 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 |
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Important additional information about respirator selection Respirator Recommendations 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 |
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| 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] | |
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Target Organs
Eyes, skin, respiratory system Cancer Site [nasal cancer] |
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| See also: INTRODUCTION See MEDICAL TESTS: 0110 |