1.Identification
1.1 GHS Product identifier
| Product name | Ethanethiol |
|---|
1.2 Other means of identification
| Product number | - |
|---|---|
| Other names | Ethanthiol |
1.3 Recommended use of the chemical and restrictions on use
| Identified uses | For industry use only. Food additives -> Flavoring Agents |
|---|---|
| Uses advised against | no data available |
1.4 Supplier's details
| Company | MOLBASE (Shanghai) Biotechnology Co., Ltd. |
|---|---|
| Address | Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road, Xuhui District, Shanghai, China |
| Telephone | +86(21)64956998 |
| Fax | +86(21)54365166 |
1.5 Emergency phone number
| Emergency phone number | +86-400-6021-666 |
|---|---|
| Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
2.Hazard identification
2.1 Classification of the substance or mixture
Flammable liquids, Category 2
Acute toxicity - Inhalation, Category 4
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1
2.2 GHS label elements, including precautionary statements
| Pictogram(s) |    |
|---|---|
| Signal word | Danger |
| Hazard statement(s) | H225 Highly flammable liquid and vapour H332 Harmful if inhaled H410 Very toxic to aquatic life with long lasting effects |
| Precautionary statement(s) | |
| Prevention | P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P280 Wear protective gloves/protective clothing/eye protection/face protection. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. |
| Response | P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower]. P370+P378 In case of fire: Use ... to extinguish. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P312 Call a POISON CENTER/doctor/…if you feel unwell. P391 Collect spillage. |
| Storage | P403+P235 Store in a well-ventilated place. Keep cool. |
| Disposal | P501 Dispose of contents/container to ... |
2.3 Other hazards which do not result in classification
none
3.Composition/information on ingredients
3.1 Substances
| Chemical name | Common names and synonyms | CAS number | EC number | Concentration |
|---|---|---|---|---|
| Ethanethiol | Ethanethiol | 75-08-1 | none | 100% |
4.First-aid measures
4.1 Description of necessary first-aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
In case of skin contact
Rinse skin with plenty of water or shower. Rinse skin with plenty of water or shower.
In case of eye contact
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
If swallowed
Rinse mouth. Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. Refer for medical attention .
4.2 Most important symptoms/effects, acute and delayed
Inhalation of vapor causes muscular weakness, convulsions, respiratory paralysis. High concentrations may cause pulmonary irritation. Liquid irritates eyes and skin. Ingestion causes nausea and irritation of mouth and stomach. (USCG, 1999)
4.3 Indication of immediate medical attention and special treatment needed, if necessary
/SRP:/ Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 m1/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Administer activated charcoal ... . Cover skin burns with dry sterile dressings after decontamination ... . /Sulfur and related compounds/
5.Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media
If material /is/ on fire or involved in /a/ fire: Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may spread fire. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide.
5.2 Specific hazards arising from the chemical
Special Hazards of Combustion Products: Irritating fumes of sulfur dioxide are generated. Behavior in Fire: Vapor is heavier than air and may travel long distance to a source of ignition and flash back; containers may explode in a fire; offensive fumes are released when heated. (USCG, 1999)
5.3 Special protective actions for fire-fighters
Wear self-contained breathing apparatus for firefighting if necessary.
6.Accidental release measures
6.1 Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.
6.2 Environmental precautions
Evacuate danger area! Personal protection: self-contained breathing apparatus. Do NOT wash away into sewer. Collect leaking and spilled liquid in sealable containers as far as possible.
6.3 Methods and materials for containment and cleaning up
Odorous gases, such as methylmercaptans, mainly present a cosmetic problem. Thus a variety of methods and procedures, and also patents, are available with methods to absorb odors in scrubbers, by use of catalytic oxidizers or combined scrubber systems with oxidizing agents such as ozone or peroxides.
7.Handling and storage
7.1 Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Fireproof. Separated from strong oxidants and strong acids. Cool.Fireproof. Separated from strong oxidants, strong acids. Cool.
8.Exposure controls/personal protection
8.1 Control parameters
Occupational Exposure limit values
Recommended Exposure Limit: 15 Min Ceiling Value: 0.5 ppm (1.3 mg/cu m).
Biological limit values
no data available
8.2 Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
8.3 Individual protection measures, such as personal protective equipment (PPE)
Eye/face protection
Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Respiratory protection
Wear dust mask when handling large quantities.
Thermal hazards
no data available
9.Physical and chemical properties
| Physical state | Clear liquid |
|---|---|
| Colour | Colorless liquid [Note: A gas above 95 degrees F]. |
| Odour | Leek-like odor |
| Melting point/ freezing point | -148ºC |
| Boiling point or initial boiling point and boiling range | 35°C(lit.) |
| Flammability | Class IA Flammable Liquid: Fl.P. below 22.78°C and BP below 37.78°C.Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire. |
| Lower and upper explosion limit / flammability limit | Lower flammable limit: 2.8%; upper flammable limit: 18.0% |
| Flash point | -45°C |
| Auto-ignition temperature | 298.89°C |
| Decomposition temperature | no data available |
| pH | no data available |
| Kinematic viscosity | 0.003155 g/cm sec at 20°C |
| Solubility | 0.7 % (NIOSH, 2016) |
| Partition coefficient n-octanol/water (log value) | log Kow = 1.27 (est) |
| Vapour pressure | 8.51 psi ( 20 °C) |
| Density and/or relative density | 0.839g/mLat 25°C(lit.) |
| Relative vapour density | 2.1 (vs air) |
| Particle characteristics | no data available |
10.Stability and reactivity
10.1 Reactivity
no data available
10.2 Chemical stability
May deteriorate in normal storage and cause hazard.
10.3 Possibility of hazardous reactions
Dangerous, when exposed to heat or flame or oxidizers.The vapour is heavier than air and may travel along the ground; distant ignition possible.ETHYL MERCAPTAN reacts violently with calcium hypochlorite, May react vigorously with other oxidizing reagents. On contact with strong acids or when heated to decomposition it emits highly toxic fumes of sulfur oxides [Sax, 9th ed., 1996, p. 1575].
10.4 Conditions to avoid
no data available
10.5 Incompatible materials
Strong oxidizers [Note: Reacts violently with calcium hypochlorite].
10.6 Hazardous decomposition products
When heated to decomposition it emits highly toxic fumes of /sulfur oxides/.
11.Toxicological information
Acute toxicity
- Oral: LD50 Rat oral 682 mg/kg
- Inhalation: LC50 Rat inhalation 2770 ppm/4 hr
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
no data available
Reproductive toxicity
no data available
STOT-single exposure
no data available
STOT-repeated exposure
no data available
Aspiration hazard
no data available
12.Ecological information
12.1 Toxicity
- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: EC50 Daphnia magna (Waterflea, <24 hr old) 90-280 mg/L/48 hr; static, 20°C, hardness: 250 mg/L CaCO3, dissolved oxygen: >6.5 mg/L, pH 8.2
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
12.2 Persistence and degradability
no data available
12.3 Bioaccumulative potential
An estimated BCF of 2.7 was calculated for ethyl mercaptan(SRC), using a water solubility of 1.56X10+4 mg/L(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
12.4 Mobility in soil
The Koc of ethyl mercaptan is estimated as 22(SRC), using a water solubility of 1.56X10+4 mg/L(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that ethyl mercaptan is expected to have very high mobility in soil.
12.5 Other adverse effects
no data available
13.Disposal considerations
13.1 Disposal methods
Product
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Contaminated packaging
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
14.Transport information
14.1 UN Number
| ADR/RID: UN2363 | IMDG: UN2363 | IATA: UN2363 |
14.2 UN Proper Shipping Name
| ADR/RID: ETHYL MERCAPTAN |
| IMDG: ETHYL MERCAPTAN |
| IATA: ETHYL MERCAPTAN |
14.3 Transport hazard class(es)
| ADR/RID: 3 | IMDG: 3 | IATA: 3 |
14.4 Packing group, if applicable
| ADR/RID: I | IMDG: I | IATA: I |
14.5 Environmental hazards
| ADR/RID: yes | IMDG: yes | IATA: yes |
14.6 Special precautions for user
no data available
14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code
no data available
15.Regulatory information
15.1 Safety, health and environmental regulations specific for the product in question
| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| Ethanethiol | Ethanethiol | 75-08-1 | none |
| European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
| EC Inventory | Listed. | ||
| United States Toxic Substances Control Act (TSCA) Inventory | Listed. | ||
| China Catalog of Hazardous chemicals 2015 | Listed. | ||
| New Zealand Inventory of Chemicals (NZIoC) | Listed. | ||
| Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Listed. | ||
| Vietnam National Chemical Inventory | Listed. | ||
| Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Listed. | ||
16.Other information
Information on revision
| Creation Date | Aug 16, 2017 |
|---|---|
| Revision Date | Aug 16, 2017 |
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/
