NAME: Diazomethane
SYNONYM(s): Azimethylene; Diazirine
IMIS: 0861
CAS: 334-88-3
NIOSH: RTECS PA7000000; 47875
DESCRIPTION:
Yellow gas, or liquid under pressure.
MW: 42
BP: -9 F
MP: -229 F
INCOM: Alkali metals, drying agents such as calcium sulfate
Exposure Limits
OSHA GENERAL INDUSTRY PEL: 0.2 ppm, 0.4 mg/m3
OSHA CONSTRUCTION INDUSTRY PEL: 0.2 ppm, 0.4 mg/m3 TWA
ACGIH TLV: 0.2 ppm, 0.34 mg/m3 TWA; Appendix A2 (Suspected Human Carcinogen)
NIOSH REL: 0.2 ppm TWA
Health Factors
IARC: Group 3, not classifiable as to its carcinogenicity to humans
SYMPTOM(s): Coughing, shortness of breath; headaches; flushed skin, fever; chest pain, pulmonary edema, pneumonitis; irritated eyes; asthma; fatigue
HEALTH EFFECTS: Acute lung damage (HE11) Irritation-Eyes, Nose, Throat, Skin---Marked (HE14)
ORGAN: Respiratory system, eyes, skin
NIOSH/OSHA/DOE Health Guideline
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
MEDIA: Coated XAD-2 Tube (100/50 mg sections, 20/50 mesh); Coating is 1% (w/w) Octanoic Acid.
ANL SOLVENT: Carbon Disulfide
MAX V: 30 Liters MAX F: 0.2 L/min
ANL 1: Gas Chromatography; GC/FID
REF: 1 (NIOSH 2515)
SAE: 0.14
CLASS: Fully Validated
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