Benzofuran SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： Benzofuran
- CAS： 271-89-6
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.in
- Address：5 vasavi Layout Basaveswara Nilayam Pragathi Nagar Hyderabad, India -500090
- Telephone：+91 9550333722
SECTION 2: Hazards identification
Classification of the substance or mixture
Flammable liquids, Category 3
Carcinogenicity, Category 2
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3
GHS label elements, including precautionary statements
-
Pictogram(s)
- Signal word Warning
H226 Flammable liquid and vapour
H351 Suspected of causing cancer
H412 Harmful to aquatic life with long lasting effects
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/hearing protection/...
P203 Obtain, read and follow all safety instructions before use.
P273 Avoid release to the environment.
P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse affected areas with water [or shower].
P370+P378 In case of fire: Use ... to extinguish.
P318 IF exposed or concerned, get medical advice.
P403+P235 Store in a well-ventilated place. Keep cool.
P405 Store locked up.
P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: Benzofuran
- Common names and synonyms: Benzofuran
- CAS number: 271-89-6
- EC number: 205-982-6
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Move the victim into fresh air. If breathing is difficult, give oxygen. If not breathing, give artificial respiration and consult a doctor immediately. Do not use mouth to mouth resuscitation if the victim ingested or inhaled the chemical.
Take off contaminated clothing immediately. Wash off with soap and plenty of water. Consult a doctor.
Rinse with pure water for at least 15 minutes. Consult a doctor.
Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a doctor or Poison Control Center immediately.
Most important symptoms/effects, acute and delayed
ACUTE/CHRONIC HAZARDS: When heated to decomposition this compound emits acrid and irritating smoke and fumes. (NTP, 1992)
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 needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary . Monitor for shock 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 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool . Cover skin burns with dry sterile dressings after decontamination . Poison A and B
SECTION 5: Firefighting measures
Suitable extinguishing media
Use/ foam, dry powder, carbon dioxide. ...Keep drums, etc., cool by spraying with water.
Specific hazards arising from the chemical
This chemical is combustible. (NTP, 1992)
Special protective actions for fire-fighters
Use foam, dry powder, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Remove all ignition sources. Do NOT wash away into sewer. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in covered containers as far as possible.
Environmental precautions
Remove all ignition sources. Do NOT wash away into sewer. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in covered containers as far as possible.
Methods and materials for containment and cleaning up
PRECAUTIONS FOR "CARCINOGENS": A high-efficiency particulate arrestor (HEPA) or charcoal filters can be used to minimize amt of carcinogen in exhausted air ventilated safety cabinets, lab hoods, glove boxes or animal rooms ... Filter housing that is designed so that used filters can be transferred into plastic bag without contaminating maintenance staff is avail commercially. Filters should be placed in plastic bags immediately after removal ... The plastic bag should be sealed immediately ... The sealed bag should be labelled properly ... Waste liquids ... should be placed or collected in proper containers for disposal. The lid should be secured & the bottles properly labelled. Once filled, bottles should be placed in plastic bag, so that outer surface ... is not contaminated ... The plastic bag should also be sealed & labelled. ... Broken glassware ... should be decontaminated by solvent extraction, by chemical destruction, or in specially designed incinerators. Chemical Carcinogens
SECTION 7: Handling and storage
Precautions for safe handling
NO open flames, NO sparks and NO smoking. Above 56°C use a closed system, ventilation and explosion-proof electrical equipment. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Fireproof. Well closed. Cool.PRECAUTIONS FOR "CARCINOGENS": Storage site should be as close as practical to lab in which carcinogens are to be used, so that only small quantities required for ... expt need to be carried. Carcinogens should be kept in only one section of cupboard, an explosion-proof refrigerator or freezer (depending on chemicophysical properties ...) that bears appropriate label. An inventory ... should be kept, showing quantity of carcinogen & date it was acquired ... Facilities for dispensing ... should be contiguous to storage area. Chemical Carcinogens
SECTION 8: Exposure controls/personal protection
Control parameters
no data available
no data available
Appropriate engineering controls
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Individual protection measures, such as personal protective equipment (PPE)
Wear tightly fitting safety goggles with side-shields conforming to EN 166(EU) or NIOSH (US).
Wear fire/flame resistant and impervious clothing. Handle with gloves. Gloves must be inspected prior to use. 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.
If the exposure limits are exceeded, irritation or other symptoms are experienced, use a full-face respirator.
no data available
SECTION 9: Physical and chemical properties and safety characteristics
-
Physical state：
PHYSICAL DESCRIPTION: Clear oily yellow liquid with an aromatic odor. (NTP, 1992)
-
Colour：
Not solid @ -18 deg C; oil
-
Odour：
Aromatic odor
-
Melting point/freezing point：
191°C(dec.)(lit.)
-
Boiling point or initial boiling point and boiling range：
160°C/0.5mmHg(lit.)
-
Flammability：
Flammable.
-
Lower and upper explosion limit/flammability limit：
no data available
-
Flash point：
56°C(lit.)
-
Auto-ignition temperature：
no data available
-
Decomposition temperature：
no data available
-
pH：
no data available
-
Kinematic viscosity：
no data available
-
Solubility：
0.1 to 1 mg/mL at 64° F (NTP, 1992)
-
Partition coefficient n-octanol/water：
log Kow= 2.67
-
Vapour pressure：
1.65mmHg at 25°C
-
Density and/or relative density：
1.07
-
Relative vapour density：
no data available
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
The substance slowly polymerizes at ambient temperatures. The substance more rapidly polymerizes under the influence of heat and under the influence of acidic catalyst.
Chemical stability
no data available
Possibility of hazardous reactions
Flammable; flash point: 56 deg C2,3-BENZOFURAN slowly polymerizes on standing. It may be sensitive to prolonged exposure to air. This compound is polymerized by H2SO4. (NTP, 1992)
Conditions to avoid
no data available
Incompatible materials
This compound is polymerized by H2SO4.
Hazardous decomposition products
no data available
SECTION 11: Toxicological information
Acute toxicity
- Oral: no data available
- 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
Evaluation: There is inadequate evidence in humans for the carcinogenicity of benzofuran. There is sufficient evidence in experimental animals for the carcinogenicity of benzofuran. Overall evaluation: Benzofuran is possibly carcinogenic to humans (Group 2B).
Reproductive toxicity
no data available
STOT-single exposure
no data available
STOT-repeated exposure
The substance may have effects on the kidneys and liver. This substance is possibly carcinogenic to humans.
Aspiration hazard
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C.
SECTION 12: Ecological information
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
Persistence and degradability
AEROBIC: Benzofuran has been shown to biodegrade in the presence of creosote-adapted microorganisms(SRC). Benzofuran biodegraded using a enriched culture from a creosote contaminated site(1) where biodegradation of benzofuran was enhanced by the degradation of other creosote compounds(1). Benzofuran was completely removed in combination with toluene, p-xylene, m-xylene, naphthalene, 1-methylnapthalene within the first 12 days of incubation, compared with a 7% loss in the acidified control microcosm(1). After 27 days, complete removal of benzofuran was observed in combination with other primary creosote substituents except 1-methylnapthalene where 95% removal was observed(1). In a study using aerobic groundwater microcosms, benzofuran at 3.3 mg/l degraded completely after 95 days (lag period = 70 days) from an aquifer contaminated with creosote compounds while from a background aquifer, benzofuran degraded after 285 days (lag period = 278 days)(2).
Bioaccumulative potential
The BCF of benzofuran in guppies exposed to 100-250 ul of a hetero PAH in 3 liters of 1:1 tapwater/deionized water for 48 hours was 360(1). According to a classification scheme(2), this BCF suggests bioconcentration in aquatic organisms is moderate(SRC).
Mobility in soil
The Koc of benzofuran is estimated as 680(SRC), using a log Kow of 2.67(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that benzofuran is expected to have low mobility in soil(SRC). Sorption of creosote compounds (including benzofuran) were measured on natural clayey till soil column(4). A Kd of 1.4 l/kg was measured for benzofuran (in presence of other creosote compounds) with a time for 50% breakthrough on the column nearly equivalent to non-adsorbing bromide ions (e.g., 37 days)(4). This data suggests that benzofuran is weakly sorbed on clayey till soil(SRC).
Other adverse effects
no data available
SECTION 13: Disposal considerations
Disposal methods
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.
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.
SECTION 14: Transport information
UN Number
ADR/RID: UN1993 (For reference only, please check.)
IMDG: UN1993 (For reference only, please check.)
IATA: UN1993 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: FLAMMABLE LIQUID, N.O.S. (For reference only, please check.)
IMDG: FLAMMABLE LIQUID, N.O.S. (For reference only, please check.)
IATA: FLAMMABLE LIQUID, N.O.S. (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 3 (For reference only, please check.)
IMDG: 3 (For reference only, please check.)
IATA: 3 (For reference only, please check.)
Packing group, if applicable
ADR/RID: I (For reference only, please check.)
IMDG: I (For reference only, please check.)
IATA: I (For reference only, please check.)
Environmental hazards
ADR/RID: No
IMDG: No
IATA: No
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
Safety, health and environmental regulations specific for the product in question
SECTION 16: Other information
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/
Other Information
Explosive limits are unknown in literature, although the substance is combustible and has a flash point < 61°C.Do NOT take working clothes home.Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.