Ammonium sulfamate

Agent Name
Ammonium sulfamate
CAS Number
7773-06-0
Formula
H3-N-O3-S.H3-N
Major Category
Pesticides
Synonyms
Ammate herbicide; Ammonium amidosulfonate; AMS; Monoammonium salt of sulfamic acid; Amicide; Amidosulfate; Ammate; AmmateX-NI; Fyran 206k; Ikurin; Silvicide
Category
Herbicides, Other
Description
Colorless to white crystalline, odorless solid. [herbicide]; [NIOSH] Deliquescent; [CHEMINFO]
Sources/Uses
Used to kill trees, herbaceous perennials, and annual broadleaf weeds; [EXTOXNET]
Comments
A "slightly toxic" contact herbicide; [EXTOXNET] The following herbicides have an oral LD50 of >1 gm/kg and have little or no acute toxicity in humans: Alachlor, Amitrole, Ammonium sulfamate, Atrazine, Dalapon, Dicamba, Glyphosphate, Monuron, Oryzalin, Picloram, Propanil, Simazine, etc. [LaDou, p. 613]
Restricted
Du Pont discontinued manufacture in 1988. [EXTOXNET]
Biomedical References

Exposure Assessment

Skin Designation (ACGIH)
Insufficient data
TLV (ACGIH)
10 mg/m3
PEL (OSHA)
15 mg/m3(total dust), 5 mg/m3(respirable fraction)
IDLH (NIOSH)
1500 mg/m3
Excerpts from Documentation for IDLHs
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.

Diseases, Processes, and Activities Linked to This Agent

Processes

Industrial Processes with risk of exposure: