Demeton is a light brown liquid with an odor
of sulfur compounds; freezing/melting point ≤‐13
C
Colinesterase inhibitor. Insecticide
ChEBI: Demeton-S is an organothiophosphorus compound.
Poison by ingestion,
intraperitoneal, and subcutaneous routes.
When heated to decomposition it emits very
toxic fumes of POx and SOx. See also
DEMETON-0 + DEMETON-S and other
demeton entries.
A potential danger to those involved
in the manufacture, formulation, and application of this
systemic insecticide and acaricide.
UN3278 Organophosphorus compound, liquid,
toxic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous
materials, Hazard Technical Name Required, Potential
Inhalation Hazard (Special Provision 5). UN3017
Organophosphorus pesticides, liquid, toxic, flammable,
flash point not , 23
C, Hazard class: 6.1; Labels: 6.1-
Poisonous materials, 3-Flammable liquid. UN2810 Toxic
liquids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-
Poisonous materials, Technical Name Required.
May form explosive mixture with air.
Strong oxidizers, strong bases, soluble mercury, other
pesticides, and water.
The thiono-and thiolo-isomers of
this mixture are 50% hydrolyzed in 75 minutes and 0.85 min-
ute, respectively @ 20℃
and pH 13. At pH 9 and 70 ℃
, the
half-life of Demeton is 1.25 hour, but an pH 1-5 it is over
11 hours. Sand and rushed limestone may be added together
with a flammable solvent; the resultant mixture may be burned
in a furnace with afterburner and alkaline scrubber
.In
accordance with 40CFR165, follow recommendations for the
disposal of pesticides and pesticide containers. Must be dis-
posed properly by following package label directions or by
contacting your local or federal environmental control agency,
or by contacting your regional EPA office.
