| Agent Name |
Methyl acetylene-propadiene mixture |
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| Alternative Name |
MAPP |
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| CAS Number |
59355-75-8 |
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| Major Category |
Other Classes |
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| Synonyms |
MAPP gas; Methyl acetylene-allene mixture; Methyl acetylene-propadiene mixture (stabilized); Propadiene-methyl acetylene; Propyne-allene mixture; Propyne-propadiene mixture; [NIOSH] UN1060 UN1954 |
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| Category |
Other Organic Compounds |
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| Description |
Colorless gas with a strong, characteristic, foul odor. [Note: A fuel that is shipped as a liquefied compressed gas.]; [NIOSH] |
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| Sources/Uses |
Used as fuel for industrial cutting; [ACGIH] |
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| Comments |
Possible frostbite from contact with liquid; [NIOSH] MAPP gas is an explosive hazard. At an exposure level of 5000 ppm 7 hours/day, 5 days/week, experimental animals show decreased body weight. [ACGIH] See "Methyl acetylene" and "Propadiene." Classified as "Simple asphyxiant"; [CAMEO] |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
No |
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| TLV (ACGIH) |
1000 ppm |
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| STEL (ACGIH) |
1250 ppm |
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| PEL (OSHA) |
1000 ppm |
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| IDLH (NIOSH) |
3400 ppm |
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| Excerpts from Documentation for IDLHs |
Basis for revised IDLH: Since a methyl acetylene�propadiene mixture appears to have relatively low toxicity, and based on an analogy to methyl acetylene [ACGIH 1991], the revised IDLH is 3,400 ppm based strictly on safety considerations (i.e., being 10% of the lower explosive limit of 3.4%). |
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| Explanatory Notes |
IDLH = 10% LEL; |
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| Adverse Effects |
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| Neurotoxin |
CNS Solvent Syndrome |
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| Other Poison |
Simple Asphyxiant |
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| Links to Other NLM Databases |
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