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Ethylene thiourea																				Related Pages
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

FormulaC3H6N2S
	Conversion
	IDLH
			Ca [N.D.]See: IDLH INDEX

Exposure Limits
			NIOSH RELCa 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.]													
										
Molecular Weight102.2	
	Boiling Point446-595°F
	Melting Point392°F
	Solubility(86°F): 2%
	Vapor Pressure16 mmHg
	Ionization Potential8.15 eV											
Specific Gravity?	
	Flash Point486°F
	Upper Explosive Limit?
	Lower Explosive Limit?
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
					  ICSC CARD: 1148

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Chemical Names, Synonyms and Trade Names
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M
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Q
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CAS Numbers
RTECS Numbers
Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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