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Ethylene thiourea

Synonyms & Trade Names
1,3-Ethylene-2-thiourea; N,N-Ethylenethiourea; ETU; 2-Imidazolidine-2-thione
CAS No.
96-45-7
RTECS No.
NI9625000
DOT ID & Guide
Formula
C3H6N2S
Conversion
IDLH
Ca [N.D.]
See: IDLH INDEX
Exposure Limits
NIOSH REL
: Ca Use encapsulated form. See Appendix A
OSHA PEL
: none
Measurement Methods

NIOSH 5011;
OSHA 95
See: NMAM or OSHA Methods
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.]
MW:
102.2
BP:
446-595°F
MLT: 392°F Sol(86°F): 2%
VP:
16 mmHg
IP:
8.15 eV
Sp.Gr:
?
Fl.P:
486°F
UEL:
?
LEL:
?
Combustible Solid
Incompatibilities & Reactivities
Acrolein
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes; in animals: thickening of the skin; goiter; teratogenic effects; [potential occupational carcinogen]
Target Organs
Eyes, skin, thyroid, reproductive system
Cancer Site
[in animals: liver, thyroid & lymphatic sys tumors]
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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

See also: INTRODUCTION   See ICSC CARD: 1148
 
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