Sulfur monochloride
May 1994
Immediately Dangerous to Life or Health Concentrations (IDLH)
CAS number: 10025–67–9
NIOSH REL: 1 ppm (6 mg/m3) CEILING
Current OSHA PEL: 1 ppm (6 mg/m3) TWA
1989 OSHA PEL: 1 ppm (6 mg/m3) CEILING
1993-1994 ACGIH TLV: 1 ppm (5.5 mg/m3) CEILING
Description of substance: Light-amber to yellow-red, oily liquid with a pungent, nauseating, irritating odor.
LEL: . . Unknown
Original (SCP) IDLH: 10 ppm
Basis for original (SCP) IDLH: Very little data are available on which to base the IDLH for sulfur monochloride. The chosen IDLH has been estimated from the statement by ACGIH [1971] that 12 ppm for 15 minutes was tolerated by cats, but four times that concentration, also for 15 minutes, could lead to death after a few days [Flury and Zernik 1931]. No other useful data are available on which to base the IDLH.
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 | Flury & Zernik 1931 | ----- | 150 | 1 min | 48 ppm (0.32) | 4.8 ppm |
Cat | Henderson & Haggard 1943 | LC100: 60 | ----- | 15 min | 47 ppm (0.79) | 4.7 ppm |
Other animal data: It has been reported that cats have tolerated 15-minute exposures to 12 ppm, while 48 ppm could lead to death after a few days [Flury and Zernik 1931].
Human data: None relevant for use in determining the revised IDLH.
Revised IDLH: 5 ppm Basis for revised IDLH: The revised IDLH for sulfur monochloride is 5 ppm based on acute inhalation toxicity data in animals [Flury and Zernik 1931; Henderson and Haggard 1943]. |
REFERENCES:
1. ACGIH [1971]. Sulfur monochloride. In: Documentation of the threshold limit values for substances in workroom air. 3rd ed. Cincinnati, OH: American Conference of Governmental Industrial Hygienists, pp. 240-241.
2. Flury F, Zernik F [1931]. Schädliche gase dämpfe, nebel, rauch- und staubarten. Berlin, Germany: Verlag von Julius Springer, pp. 146-147 (in German).
3. Henderson Y, Haggard HW [1943]. Noxious gases. 2nd ed. New York, NY: Reinhold Publishing Corporation, p. 130.
- Page last reviewed: December 4, 2014
- Page last updated: December 4, 2014
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