1.Identification
1.1 GHS Product identifier
| Product name | Isobutene |
|---|
1.2 Other means of identification
| Product number | - |
|---|---|
| Other names | Propene,2-methyl |
1.3 Recommended use of the chemical and restrictions on use
| Identified uses | For industry use only. Adhesives and sealant chemicals,Fuels and fuel additives,Intermediates,Lubricants and lubricant additives,Solvents (which become part of product formulation or mixture) |
|---|---|
| Uses advised against | no data available |
1.4 Supplier's details
1.5 Emergency phone number
| Emergency phone number | - |
|---|---|
| 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
Gases under pressure: Compressed gas
Flammable gases, Category 1
2.2 GHS label elements, including precautionary statements
| Pictogram(s) |   |
|---|---|
| Signal word | Danger |
| Hazard statement(s) | H220 Extremely flammable gas |
| Precautionary statement(s) | |
| Prevention | P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. |
| Response | P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely. P381 In case of leakage, eliminate all ignition sources. |
| Storage | P410+P403 Protect from sunlight. Store in a well-ventilated place. P403 Store in a well-ventilated place. |
| Disposal | none |
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 |
|---|---|---|---|---|
| Isobutene | Isobutene | 115-11-7 | 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
ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .
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
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
4.2 Most important symptoms/effects, acute and delayed
Inhalation of moderate concentrations causes dizziness, drowsiness, and unconsciousness. Contact with eyes or skin may cause irritation; the liquid may cause frostbite. (USCG, 1999)
4.3 Indication of immediate medical attention and special treatment needed, if necessary
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 as 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 mL/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 ... Treat frostbite with rapid rewarming techniques ... /Aliphatic hydrocarbons and related compounds/
5.Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media
To fight fire, stop flow of gas.
5.2 Specific hazards arising from the chemical
Behavior in Fire: Containers may explode in fire. Vapor is heavier than air and may travel a long distance to a source of ignition and flash back. (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! Consult an expert! Ventilation. Remove all ignition sources. Do NOT wash away into sewer. NEVER direct water jet on liquid. Personal protection: chemical protection suit including self-contained breathing apparatus.
6.3 Methods and materials for containment and cleaning up
Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.
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 incompatible materials. See Chemical Dangers. Cool.... MATERIALS WHICH ARE TOXIC AS STORED OR WHICH CAN DECOMPOSE INTO TOXIC COMPONENTS ... SHOULD BE STORED IN A COOL, WELL VENTILATED PLACE, OUT OF THE DIRECT RAYS OF THE SUN, AWAY FROM AREAS OF HIGH FIRE HAZARD, AND SHOULD BE PERIODICALLY INSPECTED. INCOMPATIBLE MATERIALS SHOULD BE ISOLATED ...
8.Exposure controls/personal protection
8.1 Control parameters
Occupational Exposure limit values
no data available
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 | COLOURLESS COMPRESSED LIQUEFIED GAS , WITH CHARACTERISTIC ODOUR. |
|---|---|
| Colour | Easily liquefied gas |
| Odour | Coal gas odor |
| Melting point/ freezing point | 204°C(lit.) |
| Boiling point or initial boiling point and boiling range | 164°C/7mmHg(lit.) |
| Flammability | Extremely flammable. |
| Lower and upper explosion limit / flammability limit | no data available |
| Flash point | 101°C(lit.) |
| Auto-ignition temperature | 465°C (USCG, 1999) |
| Decomposition temperature | no data available |
| pH | no data available |
| Kinematic viscosity | no data available |
| Solubility | Insoluble |
| Partition coefficient n-octanol/water (log value) | log Kow = 2.34 |
| Vapour pressure | 3278 mm Hg ( 37.7 °C) |
| Density and/or relative density | 0.627 g/cm3 |
| Relative vapour density | 2 (vs air) |
| Particle characteristics | no data available |
10.Stability and reactivity
10.1 Reactivity
no data available
10.2 Chemical stability
VOLATILE LIQUID OR EASILY LIQUEFIED GAS.
10.3 Possibility of hazardous reactions
A very dangerous fire and explosion hazard when exposed to heat or flame.The gas is heavier than air and may travel along the ground; distant ignition possible. The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen. As a result of flow, agitation, etc., electrostatic charges can be generated.ISOBUTYLENE is incompatible with oxidizers. It polymerizes easily. It reacts easily with numerous materials, such as alkyl halides, halogens, concentrated sulfuric acid, hypochlorous acid, aluminum chloride, carbon monoxide and hydrogen with a cobalt catalyst. Polymerization is catalyzed by aluminum chloride and boron trifluoride.
10.4 Conditions to avoid
no data available
10.5 Incompatible materials
CAN REACT VIGOROUSLY WITH OXIDIZING MATERIALS.
10.6 Hazardous decomposition products
When heated to decomposition it emits acrid smoke and fumes.
11.Toxicological information
Acute toxicity
- Oral: LC50 Mouse oral 415 mg/L/2 hr
- Inhalation: no data available
- 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: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
12.2 Persistence and degradability
Isobutylene was degraded to 1,2-epoxybutane by pure cultures of methanotrophic bacteria(1).
12.3 Bioaccumulative potential
An estimated BCF of 35 was calculated for isobutylene(SRC), using a log Kow of 2.34(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is moderate(SRC).
12.4 Mobility in soil
The Koc of isobutylene is estimated as 450(SRC), using a log Kow of 2.34(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that isobutylene is expected to have moderate mobility in soil(SRC).
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: UN1993 | IMDG: UN1993 | IATA: UN1993 |
14.2 UN Proper Shipping Name
| ADR/RID: FLAMMABLE LIQUID, N.O.S. |
| IMDG: FLAMMABLE LIQUID, N.O.S. |
| IATA: FLAMMABLE LIQUID, N.O.S. |
14.3 Transport hazard class(es)
| ADR/RID: 3 | IMDG: 3 | IATA: 3 |
14.4 Packing group, if applicable
| ADR/RID: II | IMDG: II | IATA: II |
14.5 Environmental hazards
| ADR/RID: no | IMDG: no | IATA: no |
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 |
|---|---|---|---|
| Isobutene | Isobutene | 115-11-7 | 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 10, 2017 |
|---|---|
| Revision Date | Aug 10, 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/