WESTERN RESERVE CHEMICAL
4837 DARROW RD. PH# 330-650-2244
STOW, OHIO 44224 Fax# 330-650-2255
CHEMTREC 800-424-9300
MATERIAL SAFETY DATA SHEET
WESTCO ETU
CAS #
96-45-7
1. Product Identifications
Product Name: ETU
Chemical Name: Ethylene Thiourea
Formula: C3H6N2S
2. Physical Description/Properties
Specific Gravity: 1.22
Melting Point (C?Min): 192
Bulk Density (kg/m3): n.a.
Appearance: Off-white powder/oil treated
powder
Odor: No noticeable odor
Solubility: Very soluble in hot water; slightly soluble in
cold water, methanol, ethanol, ethylene glycol,
pyridine, acetic acid, napththalene; insoluble
in acetone, ether, chloroform, benzene.
3. Hazard Information
WARNING: Listed as a carcinogen (NTP, IARC, OSHA)
Combustible dust
Eye irritant-Avoid eye contact. Eye contact with dust can cause irritation
to eyes such as itching, reddening, tearing and burning. Eye contact with
vapors from this material can cause severe eye irritation.
Skin contact- Avoid skin contact. Repeated or prolonged skin contact
may cause skin irritation or skin sensitization effect in susceptible
individuals.
Material Safety Data Sheet /ETU/ Page 2
Inhalation- Inhalation of dust must be avoided. ETU may have effects
on the thyroid and liver. Animal tests show that this substance could
possibly cause malformations in human babies.
Ingestion- Avoid ingestion. This material is considered moderately toxic
by ingestion.
4. First Aid Information
Skin: Wash affected areas of skin with soap and running
water. If irritation develops, seek medical attention.
Do not reuse contaminated clothing without
laundering.
Ingestion: Immediately contact a physician or a Poison Control
Center. Do not give anything orally to an
unconscious or convulsing person. If the victim is
convulsing or unconscious, ensure that the victim's
airway is open, lay the victim on his/her side with the
head lower than the body, and immediately
transport the victim to a hospital.
Eyes: Irrigate eye with water for 15 minutes. Remove
contact lenses to ensure thorough flushing. Seek
medical attention.
Inhalation: Remove person to fresh air. Get immediate medical
attention if breathing is difficult or short.
5. Handling and Storage
General: Maintain good housekeeping to prevent dust accumulation.
Avoid contact with eyes, skin and clothing. Control inventory, use oldest
material first, and store in a cool, dry, well ventilated area. Avoid ignition
sources such as sparks and flame.
6. Employee Protection Recommendations
The employee should wear protective clothes and avoid direct physical
contact with the product.
Eye Protection: Wear chemical safety glasses or goggles
Hand Protective Requirements: Wear protective gloves.
Material Safety Data Sheet /ETU/ Page 3
Skin Protective Requirements: Wear protective clothing to prevent
Skin contact. Wash exposed skin
With soap/water, launder clothing
before use.
Ventilation: Local exhaust
7. Toxicological Information
LD50 acute oral for rats: >265mg/kg
8. Fire and Explosion Data
Flash point: Not available
Extinguish Method: Water spray, dry chemical, carbon
dioxide or foam extinguishing agents.
Fire Fighting Instructions: Wear self-contained, positive pressure
breathing apparatus (SCABA) and full
fire fighting protective clothing. Do not
allow contamination water to enter
storm drains or waterways.
Combustion Products: Thermal decomposition produces toxic
oxides of carbon, nitrogen, and sulfur.
9. Reactivity
The material is considered stable at ambient temperatures and
atmospheric pressures. It is not self reactive. Hazardous polymerization
does not occur.
Substances to Avoid: Oxidizing agent, acids, bases
10. Accidental Release and Disposal
Waste disposal: In its unused condition, this material is a HAZARDOUS
WASTE as defined by the Resource Conservation and Recovery Act
(RCRA), 40 CFR 261. RCRA waste number U116. Material that cannot
be used or chemically reprocessed should be disposed at an approved
facility in accordance with all applicable local, state and federal
regulations. Incineration is recommended.
Material Safety Data Sheet /ETU/ Page 4
11. Transportation Information
DOT Status: Class 9
DOT Shipping name: Environmentally Hazardous substance,
Solid, NOS (ethylene thiourea), 9,
UN3077, PG III.
DOT reportable qty. (lbs): 1001
UN/NA number: 3077
12. Regulatory Information
Worldwide Inventory Status
TSCA (USA): Listed
Canadian DSL: Listed
Canadian NDSL: Not Applicable. Listed on the DSL.
EINECS/ELINCS (Europe): Listed
Japanese Inventory (ENCS): Listed
Korean Chemical Inventory
(ECL): Listed
Australian Chemical Inventories
(AICS): Listed
New Zealand (NZ): Listed
Phillipines (PICCS) Inventory: Listed
China (CLECS): Listed
US Regulatory Rules
SARA Section 302: None
SARA 311/312 Hazard Immediate Health Hazard
Categories:
SARA 313 Chemical: As Ethylene Thiourea DeMinimis
Concentration 0.1%
RCRA Status: HAZARDOUS WASTE
Other Regulations:
California Proposition 65: Carcinogen and Developmental Toxin
New Jersey Right-to-Know List: Listed Ethylene Thiourea
Material Safety Data Sheet /ETU/ Page 5
Pennsylvania Right to Know List: Ethylene Thiourea
Florida Right to Know: NA
Minnesota Right to Know: Listed
MA Right to Know Law: Ethylene Thiourea
FDA Status 21 CFR: Prohibited from use in 21CFR.
Canadian Regulations
WHMIS Hazard Class: D1B VERY TOXIC MATERIALS. D2A
VERY TOXIC MATERIALS D2B
TOXIC MATERIALS/ Materials
Causing Other Toxic Effects.
NPRI: Listed
13. Other Information
HMIS Classification Health 2 Flammability 1 Reactivity 0
Important Note: The information provided is without warranty regarding
its accuracy or completeness. The information may not be valid under
all conditions. The user has the final responsibility for determining the
suitability of the product in a given application.
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