NAME: Methyl Acetylene-Propadiene Mixture
SYNONYM(s): MAPP gas; Methyl acetylene-allene mixture; Propyne-allene mixture
IMIS: 1652
CAS: 59355-75-8
NIOSH: RTECS UK4920000; 68750
DOT: UN1060 Flammable Gas
DESCRIPTION:
Colorless gas with a strong, characteristic, foul odor.
MW: 40
BP: -36 to -4 F
INCOM: Strong oxidizers, copper alloys (>67% copper)
Exposure Limits
OSHA GENERAL INDUSTRY PEL: 1000 ppm, 1800 mg/m3
OSHA CONSTRUCTION INDUSTRY PEL: 1000 ppm, 1800 mg/m3 TWA
ACGIH TLV: 1000 ppm, 1640 mg/m3 TWA; 1250 ppm, 2050 mg/m3 STEL
NIOSH REL: 1000 ppm TWA, 1250 ppm STEL
Health Factors
SYMPTOM(s): Frostbite; disorientation; excitement
HEALTH EFFECTS: Narcosis (HE8)
ORGAN: CNS, skin, eyes
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
MEDIA: Two Charcoal Tubes in series (100/50 mg sections, 20/40 mesh)
ANL SOLVENT: Carbon Disulfide
MAX V: 2 Liters MAX F: 0.05 L/min (TWA)
MAX V: 0.75 Liters MAX F: 0.05 L/min (STEL)
ANL 1: Gas Chromatography; GC/FID
REF: 2 (OSHA In-House File)
CLASS: Not Validated
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