Ethylene thiourea

Synonyms & Trade Names

1,3-Ethylene-2-thiourea, N,N-Ethylenethiourea, ETU, 2-Imidazolidine-2-thione

Physical Description

White to pale-green, crystalline solid with a faint, amine odor. [Note: Used as an accelerator in the curing of polychloroprene & other elastomers.]

Incompatibilities & Reactivities

Acrolein

Symptoms

irritation eyes; In Animals: thickening of the skin; goiter; teratogenic effects; [potential occupational carcinogen]

Cancer Site

[in animals: liver, thyroid & lymphatic sys tumors]

Respirator Recommendations

NIOSH

At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection