HSE zone: CH3CHO

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NIOSH Pocket Guide to Chemical Hazards 
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<H1><CENTER>NIOSH Pocket Guide to Chemical Hazards 
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Acetaldehyde 
 
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CAS 
75-07-0 
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CH3CHO 
 
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RTECS 
AB1925000 
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Synonyms & Trade Names 
Acetic aldehyde, Ethanal, Ethyl aldehyde 
 
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DOT ID & Guide 
1089 129 
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Exposure Limits 
 
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NIOSH REL: Ca <a href="nengapdx.htm#a">See Appendix A</A> <a href="nengapdx.htm#c">See Appendix C</A> (Aldehydes) 
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OSHA PEL†: TWA 200 ppm (360 mg/m3) 
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IDLH 
Ca [2000 ppm] 
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Conversion 
1 ppm = 1.80 mg/m3 
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Physical Description 
Colorless liquid or gas (above 69°F) with a pungent, fruity odor. 
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MW: 44.1 
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BP: 69°F 
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FRZ: -190°F 
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Sol: Miscible 
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VP: 740 mmHg 
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IP: 10.22 eV 
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Sp.Gr: 0.79 
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Fl.P: -36°F 
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UEL: 60% 
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LEL: 4.0% 
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Class IA Flammable Liquid: Fl.P. below 73°F and BP below 100°F. 
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Incompatibilities & Reactivities 
Strong oxidizers, acids, bases, alcohols, ammonia & amines, phenols, ketones, HCN, H2S [Note: Prolonged contact with air may cause formation of peroxides that may explode and burst containers; easily undergoes polymerization.] 
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Measurement Methods 
NIOSH 2538; OSHA 68 
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Personal Protection & Sanitation 
Skin: Prevent skin contact 
Eyes: Prevent eye contact 
Wash skin: When contaminated 
Remove: When wet (flammable) 
Change: No recommendation 
Provide: Eyewash, Quick drench 
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First Aid (<a href="firstaid.htm">See procedures</A>) 
Eye: Irrigate immediately 
Skin: Water flush promptly 
Breathing: Respiratory support 
Swallow: Medical attention immediately 
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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 organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus 
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Exposure Routes 
inhalation, ingestion, skin and/or eye contact 
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Symptoms 
Irritation eyes, nose, throat; eye, skin burns; dermatitis; conjunctivitis; cough; central nervous system depression; delayed pulmonary edema; in animals: kidney, reproductive, teratogenic effects; [potential occupational carcinogen] 
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Target Organs 
Eyes, skin, respiratory system, kidneys, central nervous system, reproductive system 
 Cancer Site 
[in animals: nasal cancer] 
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See also: <a href="http://goo.gl/z0DvTV">INTRODUCTION </A> 
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Acetaldehyde

NIOSH Pocket Guide to Chemical Hazards NIOSH Pocket Guide to Chemical Hazards Acetaldehyde CAS 75-07-0 CH 3 CHO ...

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