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.