Dibenzofuran SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： Dibenzofuran
- CAS： 132-64-9
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
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2
GHS label elements, including precautionary statements
-
Pictogram(s)
- Signal word No signal word
H411 Toxic to aquatic life with long lasting effects
P273 Avoid release to the environment.
P391 Collect spillage.
none
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: Dibenzofuran
- Common names and synonyms: Dibenzofuran
- CAS number: 132-64-9
- EC number: 205-071-3
- 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
Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: Inhalation of material may be harmful. Contact may cause burns to skin and eyes. Inhalation of Asbestos dust may have a damaging effect on the lungs. Fire may produce irritating, corrosive and/or toxic gases. Some liquids produce vapors that may cause dizziness or suffocation. Runoff from fire control may cause pollution. (ERG, 2016)
Indication of immediate medical attention and special treatment needed, if necessary
no data available
SECTION 5: Firefighting measures
Suitable extinguishing media
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.
Specific hazards arising from the chemical
Flash point data for this chemical are not available. It is probably combustible. (NTP, 1992)
Special protective actions for fire-fighters
Wear self-contained breathing apparatus for firefighting if necessary.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Avoid dust formation. Avoid breathing mist, gas or vapours.Avoid contacting with skin and eye. Use personal protective equipment.Wear chemical impermeable gloves. Ensure adequate ventilation.Remove all sources of ignition. Evacuate personnel to safe areas.Keep people away from and upwind of spill/leak.
Environmental precautions
Prevent further spillage or leakage if it is safe to do so. Do not let the chemical enter drains. Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up
Collect and arrange disposal. Keep the chemical in suitable and closed containers for disposal. Remove all sources of ignition. Use spark-proof tools and explosion-proof equipment. Adhered or collected material should be promptly disposed of, in accordance with appropriate laws and regulations.
SECTION 7: Handling and storage
Precautions for safe handling
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
You should protect this material from exposure to light, and store it in a refrigerator.
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: Colorless white crystalline solid. (NTP, 1992)
-
Colour：
LEAF OR NEEDLES FROM ALCOHOL
-
Odour：
Weak, characteristic odor
-
Melting point/freezing point：
255°C(lit.)
-
Boiling point or initial boiling point and boiling range：
187°C(lit.)
-
Flammability：
no data available
-
Lower and upper explosion limit/flammability limit：
no data available
-
Flash point：
51°C(lit.)
-
Auto-ignition temperature：
no data available
-
Decomposition temperature：
no data available
-
pH：
no data available
-
Kinematic viscosity：
no data available
-
Solubility：
less than 1 mg/mL at 68° F (NTP, 1992)
-
Partition coefficient n-octanol/water：
log Kow= 4.12
-
Vapour pressure：
0.0044mmHg at 25°C
-
Density and/or relative density：
1.08
-
Relative vapour density：
5.8 (NTP, 1992) (Relative to Air)
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
no data available
Chemical stability
This compound is sensitive to prolonged exposure to light.
Possibility of hazardous reactions
DIBENZOFURAN is sensitive to prolonged exposure to light (NTP, 1992).
Conditions to avoid
no data available
Incompatible materials
no data available
Hazardous decomposition products
no data available
SECTION 11: Toxicological information
Acute toxicity
- Oral: LD50 Guinea pig (Hartley, male, 3-4 wk old) oral 5-10 ug/kg bw/30 days 2,3,7,8-tetrabromodibenzofuran
- 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
CLASSIFICATION: D; not classifiable as to human carcinogenicity. BASIS FOR CLASSIFICATION: Based on no human data and no animal data for dibenzofuran alone. HUMAN CARCINOGENICITY DATA: None. ANIMAL CARCINOGENICITY DATA: None.
Reproductive toxicity
No information is available on the reproductive or developmental effects of dibenzofuran in humans or animals.
STOT-single exposure
no data available
STOT-repeated exposure
no data available
Aspiration hazard
no data available
SECTION 12: Ecological information
Toxicity
- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: LC50 Daphnia magna (Water flea) 7500 ug/L/24 hr (95% CI: 4400-13000), static
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
Persistence and degradability
AEROBIC: Dibenzofuran, present at 100 mg/l, reached 0% of its theoretical BOD in 4 weeks using an activated sludge inoculum at 30 mg/l and the Japanese MITI test(1). In a 3-day cultivation test using Tama river water and coastal seawater, 22% and 12% of initial dibenzofuran (20 ppm) was degraded(2). On this basis, degradability of dibenzofuran was judged to be moderate-to-difficult(2).
Bioaccumulative potential
Bioconcentration factors (BCF) for dibenzofuran were measured during a 33-day model ecosystem study: alga, 82; snail, 2,858; mosquito, 2,094; fish, 947(1). Equilibrium BCFs in fathead minnows ranged from 1,100 to 1,700 during 28-day flow-through experiments; equilibrium concns were reached after 2 to 4 days of exposure(1). At initial dibenzofuran concns of 5 and 50 ug/l, BCF values for guppies ranged from 524 to 2,420 and 848 to 2,200, respectfully, over a 8-week period(2). Over 97% of the accumulated dibenzofuran was eliminated in 2 days during depuration tests in fathead minnow(3). A log BCF of 3.54 was measured for guppies (Poecilia reticulata)(4). Sea lamprey taken from the Broadhead Creek site (near a coal gasification plant contaminated with coal-tar in Stroudsburg, PA) had a BCF for dibenzofuran of 7.3 liters/kg(5). According to a classification scheme(6), BCF values for fish of 524 to 947(1,2) are high and from 1,100 to 2,420(1,2) are very high(SRC).
Mobility in soil
The Koc of dibenzofuran is estimated as 4,200(SRC), using a log Kow of 4.12(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that dibenzofuran is expected to have slight mobility in soil(SRC). Monitoring of dibenzofuran in contaminated groundwater beneath an abandoned creosote facility in Conroe, TX has suggested that leaching of dibenzofuran may be much more important than predicted from estimation methods, although soil from this location had a very low organic content and other co-contaminants present(4). Sorption of creosote compounds (including dibenzofuran) were measured on natural clayey till soil column(5); a Kd of 4.31 l/kg was measured for dibenzofuran (in the presence of other creosote compounds)(5).
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: UN3077 (For reference only, please check.)
IMDG: UN3077 (For reference only, please check.)
IATA: UN3077 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (For reference only, please check.)
IMDG: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (For reference only, please check.)
IATA: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 9 (For reference only, please check.)
IMDG: 9 (For reference only, please check.)
IATA: 9 (For reference only, please check.)
Packing group, if applicable
ADR/RID: III (For reference only, please check.)
IMDG: III (For reference only, please check.)
IATA: III (For reference only, please check.)
Environmental hazards
ADR/RID: Yes
IMDG: Yes
IATA: Yes
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/