May 1994
Documentation for Immediately Dangerous To Life or Health Concentrations (IDLHs)
Stibine
CAS number: 7803–52–3
NIOSH REL: 0.1 ppm (0.5 mg/m3) TWA
Current OSHA PEL: 0.1 ppm (0.5 mg/m3) TWA
1989 OSHA PEL: Same as current PEL
1993-1994 ACGIH TLV: 0.1 ppm (0.51 mg/m3) TWA
Description of substance: Colorless gas with a disagreeable odor like hydrogen sulfide.
LEL: . . . Unknown
Original (SCP) IDLH: 40 ppm
Basis for original (SCP) IDLH: The chosen IDLH is based on the statement by AIHA [1960] that exposure of dogs and cats to 40 to 45 ppm for 1 hour has proven dangerous [Webster 1946].
Short-term exposure guidelines: None developed
ACUTE TOXICITY DATA:
Lethal concentration data:
| Species | Reference | LC50 (ppm) | LCLo (ppm) | Time | Adjusted 0.5-hr LC (CF) | Derived value |
| Mouse
G. pig Dog | Browning 1961 Browning 1961 Browning 1961 | ----- ----- ----- | 100 92 40 | 1 hr 1 hr 1 hr | 125 ppm (1.25) 115 ppm (1.25) 50 ppm (1.25) | 13 ppm 12 ppm 5 ppm |
Other animal data: It has been reported that exposure of dogs and cats to 40 to 45 ppm for 1 hour has proven dangerous [Webster 1946].
Human data: None relevant for use in determining the revised
IDLH.
| Revised IDLH: 5 ppm
Basis for revised IDLH: The revised IDLH for stibine is 5 ppm based on acute inhalation toxicity data in animals [Browning 1961]. |
REFERENCES:
1. AIHA [1960]. Stibine. In: Hygienic guide series. Am Ind Hyg Assoc J 21:529-530.
2. Browning E [1961]. Toxicity of industrial metals. London, England: Butterworths, p. 30.
3. Webster SH [1946]. Volatile hydrides of toxicological importance. J Ind Hyg Toxicol 28:167-182.
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