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]

Reference Link

EXTOXNET PIP - AMMONIUM SULFAMATE

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.

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Health Studies

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Toxicity Information

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Chemical Information

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Processes

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