NAME: Ketene

IMIS: 1574

CAS: 463-51-4

NIOSH: RTECS OA7700000; 45597

DESCRIPTION:

Colorless gas with a sharp odor.
MW: 42
BP: -69 F
VP: N/A
MP: -239 F

INCOM: Water; a variety of organic compounds

OSHA GENERAL INDUSTRY PEL: 0.5 ppm, 0.9 mg/m3

OSHA CONSTRUCTION INDUSTRY PEL: 0.5 ppm, 0.9 mg/m3 TWA

ACGIH TLV: 0.5 ppm, 0.86 mg/m3 TWA; 1.5 ppm, 2.6 mg/m3 STEL

NIOSH REL: 0.5 ppm TWA, 1.5 ppm STEL

SYMPTOM(s): Eye, nose, throat, lung irritation; pulmonary edema

HEALTH EFFECTS: Lung edema (HE11) Irritation-Eyes, Nose, Throat, Lungs---Marked (HE14)

ORGAN: Respiratory system, eyes, skin

PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):

MEDIA: Midget Fritted Glass Bubbler (MFGB) containing 10 mL Alkaline Hydroxylammonium Chloride
MAX V: 50 Liters   MAX F: 1.0 L/min (TWA)
MAX V: 15 Liters   MAX F: 1.0 L/min (STEL)
ANL 1: Colorimetric
REF: 1 (NIOSH S-92)
SAE: 0.11
CLASS: Fully Validated
NOTE: Absorbing solution: Equal volumes of 10% (w/v) hydroxylammonium chloride in water and 2.5 M sodium hydroxide are mixed. This mixture is stable for only 2 hours and should be prepared fresh just prior to use.