O,O-Dimethyl(chlor)thiophosphat

Dimethyl chlorothiophosphate is a colorless to light amber liquid. Used as a chemical intermediate for insecticides, pesticides, and fungicides; oil and gasoline additives; plasticizers; corrosion inhibitors; flame retardants; and flotation agents. Not registered as a pesticide in the U.S. (EPA, 1998)

Danger

H301 (39.2%): Toxic if swallowed [Danger Acute toxicity, oral]

P260, P261, P262, P264, P270, P271, P280, P301+P316, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P361+P364, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 97 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Danger

H302: Harmful if swallowed [Warning Acute toxicity, oral]

Chemical: Phosphorochloridothioic acid, O,O-dimethyl ester

Status: Active Update: 10-06-2016 https://echa.europa.eu/registration-dossier/-/registered-dossier/5177

Phosphorochloridothioic acid, O,O-dimethyl ester: Does not have an individual approval but may be used under an appropriate group standard

This material may burn but does not ignite readily. This material may ignite combustibles (wood, paper, oil, etc.). When heated it emits very toxic fumes of chlorine containing compounds, phosphorus oxides, and sulfur oxides. (EPA, 1998)

· Combustible material: may burn but does not ignite readily.

This material is a strong irritant to the eyes, skin, and mucous membranes. (EPA, 1998)

· TOXIC and/or CORROSIVE; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death.

Organothiophosphates, such as DIMETHYL CHLOROTHIOPHOSPHATE, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

Dimethyl thiophosphoryl chloride

UN2267

Div 6.1 Poisonous materials (49 eCFR § 173.132)

Div 6.1 Poisonous materials (49 eCFR § 173.132)

PG II: the degree of danger presented by the material is medium

Acute Tox. 3 (39.2%)

Acute toxicity (Oral) - Category 4

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

Warning: Methyl PCT is extremely corrosive. Caution is advised.

General First Aid:

Excerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:

Immediate precautionary measure

For emergency situations, wear a positive pressure, pressure-demand, full facepiece self-contained breathing apparatus (SCBA) or pressure- demand supplied air respirator with escape SCBA and a fully-encapsulating, chemical resistant suit. (EPA, 1998)