NAME: Methyl Acetylene

SYNONYM(s): Allylene; Propyne

IMIS: 1651

CAS: 74-99-7

NIOSH: RTECS UK4250000; 68746

DESCRIPTION:

Colorless gas with a sweet odor.
MW: 40
BP: -10 F
VP: 3800 mm
MP: -153 F

INCOM: Strong oxidizers, chlorine, copper, copper alloys

OSHA GENERAL INDUSTRY PEL: 1000 ppm, 1650 mg/m3

OSHA CONSTRUCTION INDUSTRY PEL: 1000 ppm, 1650 mg/m3 TWA

ACGIH TLV: 1000 ppm, 1640 mg/m3 TWA

NIOSH REL: 1000 ppm TWA

SYMPTOM(s): Hyperexcitability, tremors, anesthesia; respiratory system irritation

HEALTH EFFECTS: Explosive (HE18); Narcosis (HE8)

ORGAN: CNS

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
ANL 1: Gas Chromatography; GC/FID
REF: 2 (OSHA In-House File)
CLASS: Not Validated

SECONDARY SAMPLING/ANALYTICAL METHOD (SAM2):

DEVICE: Instrumentation COMPANY: Infrared Spectrophotometer
PART #: MIRAN 1A & 1B RANGE: 2.8 ppm @ 3.0 um
CLASS: Mfg