Immediately Dangerous to Life or Health Concentrations (IDLH)
CAS number: 7773-06-0
NIOSH REL: 10 mg/m3 (total dust) TWA, 5 mg/m3 (respirable dust) TWA
Current OSHA PEL:15 mg/m3 (total dust) TWA, 5 mg/m3 (respirable dust) TWA
1989 OSHA PEL: 10 mg/m3 (total dust) TWA, 5 mg/m3 (respirable dust) TWA
1993-1994 ACGIH TLV 10 mg/m3 TWA
Description of substance: Colorless to white crystalline, odorless solid.
LEL: Noncombustible Solid
Original (SCP) IDLH: 5,000 mg/m3
Basis for original (SCP) IDLH: The chosen IDLH is based on the rat intraperitoneal LDLO of 800 mg/kg cited by NIOSH  from Ambrose . This compound has a low toxicity.
Short-term exposure guidelines: None developed
ACUTE TOXICITY DATA
Lethal dose data:
|Species||Reference||Route||LD50(mg/kg)||LDLo(mg/kg)||Adjusted LD||Derived Value|
|Rat||Ball 1956||oral||2,000||—–||14,000 mg/m3||1,400 mg/m3|
|Mouse||Gig Tr Prof Zabol 1963||oral||3,100||—–||21,700 mg/m3||2,170 mg/m3|
|Rat||Lehman 1951||oral||3,900||—–||27,300 mg/m3||2,730 mg/m3|
|Mouse||Lehman 1951||oral||5,760||—–||40,320 mg/m3||4,032 mg/m3|
Human data: None relevant for use in determining the revised IDLH.
Revised IDLH: 1,500 mg/m3
Basis for revised IDLH: No inhalation toxicity data are available on which to base an IDLH for ammonium sulfamate. Therefore, the revised IDLH for ammonium sulfamate is 1,500 mg/m3 based on the acute oral toxicity data in animals [Ball 1956]. This may be a conservative value due to the lack of relevant acute toxicity data for workers.
- Ambrose AM . Studies of the physiological effects of sulfamic acid and ammonium sulfamate. J Ind Hyg Toxicol 25:26.
- Ball WL . Threshold limits for pesticides. AMA Arch Ind Health 14:178-185.
- Gig Tr Prof Zabol ; 7(5):56-57 (in Russian).
- Lehman AJ . Chemicals in foods: a report to the Association of Food and Drug Officials on current developments. Part II. Pesticides. Q Bulletin Assoc Food Drug Off U.S. 15(4):122-125.
- NIOSH . WO61250. Sulfamic acid, monoammonium salt. In: Registry of Toxic Effects of Chemical Substances (RTECS) 1976 ed. Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health, DHEW (NIOSH) Publication No. 76-191, p. 1111.
- Page last reviewed: December 4, 2014
- Page last updated: December 4, 2014
- Content source: