Isobutyric acid
Product identifier
- Product name: Isobutyric acid
- CBnumber: CB3367722
- CAS: 79-31-2
- EINECS Number: 201-195-7
- Synonyms: ISOBUTYRIC ACID,2-Methylpropionic acid
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 400-158-6606
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordDanger
Substance
- Product name: Isobutyric acid
- Synonyms: ISOBUTYRIC ACID,2-Methylpropionic acid
- CAS: 79-31-2
- EC number: 201-195-7
- MF: C4H8O2
- MW: 88.11
Description of first aid measures
General adviceMost important symptoms and effects, both acute and delayed
Indication of any immediate medical attention and special treatment needed
Extinguishing media
Suitable extinguishing mediaSpecial hazards arising from the substance or mixture
Carbon oxides Combustible.
Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.
Further information
Use water spray to cool unopened containers.
NFPA 704
| HEALTH | 3 | Short exposure could cause serious temporary or moderate residual injury (e.g. liquid hydrogen, sulfuric acid, calcium hypochlorite, hexafluorosilicic acid) | |
| FIRE | 2 | Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur and multiple finely divided suspended solids that do not require heating before ignition can occur. Flash point between 37.8 and 93.3 °C (100 and 200 °F). (e.g. diesel fuel, sulfur) | |
| REACT | 0 | Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2) | |
| SPEC. HAZ. |
Personal precautions, protective equipment and emergency procedures
Wear respiratory protection. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Remove all sources of ignition. Evacuate personnel to safe areas. Beware of vapors accumulating to form explosive concentrations. Vapors can accumulate in low areas.
For personal protection see section 8.
Environmental precautions
Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up
Contain spillage, and then collect with non-combustible absorbent material, (e.g. sand, earth, diatomaceous earth, vermiculite) and place in container for disposal according to local / national regulations (see section 13).
Reference to other sections
For disposal see section 13.
Precautions for safe handling
Avoid contact with skin and eyes. Avoid inhalation of vapor or mist.
Keep away from sources of ignition - No smoking.Take measures to prevent the build up of electrostatic charge.
For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Store in cool place.
Stench.
Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
control parameter
Hazard composition and occupational exposure limitsExposure controls
Appropriate engineering controlsAvoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling the product.
Tightly fitting safety goggles. Faceshield (8-inch minimum). Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
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 Regulation (EU) 2016/425 and the standard EN 374 derived from it.
Full contact
Material: Nature latex/chloroprene
Minimum layer thickness: 0,6 mm Break through time: 480 min
Material tested:Lapren? (KCL 706 / Aldrich Z677558, Size M)
Splash contact Material: Nitrile rubber
Minimum layer thickness: 0,11 mm Break through time: 30 min
Material tested:Dermatril? (KCL 740 / Aldrich Z677272, Size M)
data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the EC approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
Complete suit protecting against chemicals, Flame retardant antistatic protective clothing., The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Where risk assessment shows air-purifying respirators are appropriate use a full- face respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.
Information on basic physicochemical properties
- Appearancecolorless clear, liquid
- Odourstinging
- Odour Threshold0.0015ppm
- pH2,3 at 500 g/l at 25 °C - DIN 19268
- Melting point/freezing pointMelting point/range: -47 °C - lit.
- Initial boiling point and boiling range153 - 154 °C - lit.
- Flash point55 °C - closed cup
- Evaporation rateNo data available
- Flammability (solid, gas)No data available
- Upper/lower flammability or explosive limitsUpper explosion limit: 10 %(V) Lower explosion limit: 2 %(V)
- Vapour pressure ca.2 hPa at 20 °C
- Vapour density 3,04 - (Air = 1.0)
- Relative density0,95 g/cm3 at 25 °C
- Water solubility618 g/l at 20 °C - OECD Test Guideline 105 - completely soluble
- Partition coefficient: n-octanol/waterlog Pow: 1,1 at 25 °C - Bioaccumulation is not expected.
- Autoignition temperature455 °C at 1.018 hPa - DIN 51794
- Decomposition temperature No data available
- ViscosityNo data available
- Explosive propertiesNo data available
- Oxidizing propertiesNo data available
Other safety information
Surface tension 70,2 mN/m at 1g/l at 20 °C
-
OECD Test Guideline 115
Dissociation constant 5 at 20,7 °C
-
OECD Test Guideline 112
Relative vapor density
3,04 - (Air = 1.0)
Reactivity
No data available
Chemical stability
Stable under recommended storage conditions.
Possibility of hazardous reactions
No data available
Conditions to avoid
Heat, flames and sparks.
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Hazardous decomposition products formed under fire conditions. - Carbon oxides Other decomposition products - No data available
In the event of fire: see section 5
Information on toxicological effects
Acute toxicityRemarks: (Regulation (EC) No 1272/2008, Annex VI)
LC50 Inhalation - Rat - male and female - 8 h - > 9,59 mg/l (OECD Test Guideline 403)
Remarks: (highest concentration to be prepared) LD50 Dermal - Rabbit - male - 474 mg/kg (OECD Test Guideline 402)
Result: Corrosive - 1 h (OECD Test Guideline 404)
Remarks: Tendency of poor wound-healing after penetration of the substance.
Result: Corrosive - 8 Days (Draize Test)
Salmonella typhimurium Result: negative
In vitro mammalian cell gene mutation test Chinese hamster ovary cells
Result: negative
OECD Test Guideline 474
Mouse - male and female - Red blood cells (erythrocytes) Result: negative
Acute inhalation toxicity - mucosal irritations, Cough, Shortness of breath, absorption, Possible damages:, Lung edema, Pneumonia, Symptoms may be delayed.
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.
After absorption:
Nausea, Vomiting, Headache, Drowsiness, Unconsciousness
Handle in accordance with good industrial hygiene and safety practice.
Toxicity
static test EC50 - Daphnia magna (Water flea) - 51,25 mg/l - 48 h (OECD Test Guideline 202)
(OECD Test Guideline 201)
Remarks: (IUCLID)
Persistence and degradability
Biodegradability Result: 100 % - Readily biodegradable.
(OECD Test Guideline 301E)
Bioaccumulative potential
No data available
Mobility in soil
No data available
Results of PBT and vPvB assessment
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
Other adverse effects
Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company. Waste material must be disposed of in accordance with the Directive on waste 2008/98/EC as well as other national and local regulations. Leave chemicals in original containers. No mixing with other waste. Handle uncleaned containers like the product itself.
Contaminated packaging
Dispose of as unused product.
UN number
UN proper shipping name
Transport hazard class(es)
ADR/RID: 3 (8) IMDG: 3 (8) IATA: 3 (8)
Packaging group
ADR/RID: III IMDG: III IATA: III
Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
Special precautions for user
No data available
Safety, health and environmental regulations/legislation specific for the substance or mixture
Regulations on the Safety Management of Hazardous ChemicalsAbbreviations and acronyms
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- CAS: Chemical Abstracts Service
- EC50: Effective Concentration 50%
- IATA: International Air Transportation Association
- IMDG: International Maritime Dangerous Goods
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- STEL: Short term exposure limit
- TWA: Time Weighted Average
References
【5】ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
【6】Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
【7】HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
【8】IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
【9】IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
【1】CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
【2】ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
【3】ECHA - European Chemicals Agency, website: https://echa.europa.eu/
【4】eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
【10】Sigma-Aldrich, website: https://www.sigmaaldrich.com/
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.