Benfluralin
Product identifier
- Product name: Benfluralin
- CBnumber: CB0688574
- CAS: 1861-40-1
- EINECS Number: 217-465-2
- Synonyms: Benfluralin,benefin
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
Classification of the substance or mixture
Skin irritation, Category 2
Skin sensitization, Sub-category 1B
Eye irritation, Category 2
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1
Label elements
Pictogram(s)
- Signal wordWarning
H410 Very toxic to aquatic life with long lasting effects
P273 Avoid release to the environment.
P501 Dispose of contents/container to..…
P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P333+P317 If skin irritation or rash occurs: Get medical help.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
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
no data available
Substance
- Product name: Benfluralin
- Synonyms: Benfluralin,benefin
- CAS: 1861-40-1
- EC number: 217-465-2
- MF: C13H16F3N3O4
- MW: 335.28
Description of first aid measures
If inhaledMove 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 and effects, both 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 any immediate medical attention and special treatment needed
Skin decontamination. Skin contamination should be treated promptly by washing with soap and water. Contamination of the eyes should be treated immediately by prolonged flushing of the eyes with large amounts of clean water. If dermal or ocular irritation persists, medical attention should be obtained without delay. Other herbicides
Extinguishing media
Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: SMALL FIRE: Dry chemical, CO2, water spray or regular foam. LARGE FIRE: Water spray, fog or regular foam. Do not scatter spilled material with high-pressure water streams. Move containers from fire area if you can do it without risk. Dike fire-control water for later disposal. FIRE INVOLVING TANKS: Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. (ERG, 2016)
Specific Hazards Arising from the Chemical
Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot. For UN3508, be aware of possible short circuiting as this product is transported in a charged state. (ERG, 2016)
Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.
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.
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
Avoid freezing; store above 40 deg F. Do not store near heat or open flame.
Control parameters
Occupational Exposure limit valuesno data available
no data available
Exposure 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
Eye/face protectionWear 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
Information on basic physicochemical properties
- Physical stateCrystalline Solid
- ColourYellow-orange
- Odour
NO APPRECIABLE ODOR
- Melting point/freezing point
65 - 67°C
- Boiling point or initial boiling point and boiling range
369.1°C at 760 mmHg
- Flammability
no data available
- Lower and upper explosion limit/flammability limit
no data available
- Flash point
177°C
- Auto-ignition temperature
no data available
- Decomposition temperature
no data available
- pH
no data available
- Kinematic viscosity
no data available
- Solubility
G/100 ML AT 25 DEG C: >50 IN ACETONE; >25 IN ACETONITRILE; >50 IN CHLOROFORM; 45 IN DIMETHYLFORMAMIDE; 60 IN DIOXANE; 4 IN METHANOL; 58 IN METHYL ETHYL KETONE; 45 IN XYLENE
- Partition coefficient n-octanol/water
log Kow = 5.29
- Vapour pressure
1.21E-05mmHg at 25°C
- Density and/or relative density
1.337 g/cm3
- Relative vapour density
no data available
- Particle characteristics
no data available
Reactivity
Slightly water soluble.
Chemical stability
Shelf life of the emulsifiable concentrates is more than two yr .
Possibility of hazardous reactions
TECHNICAL MATERIAL IS NOT FLAMMABLE. FOR THE EMULSIFIABLE CONCENTRATES, USE ORDINARY PRECAUTIONS FOR VOLATILE SOLVENTS.A dinitroaniline derivative.
Conditions to avoid
no data available
Incompatible materials
no data available
Hazardous decomposition products
no data available
Acute toxicity
- Oral: LD50 Rat oral >10,000 mg/kg
- 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
Cancer Classification: Suggestive Evidence of Carcinogenicity, but Not Sufficient to Assess Human Carcinogenic Potential
Reproductive toxicity
no data available
STOT-single exposure
no data available
STOT-repeated exposure
no data available
Aspiration hazard
no data available
Toxicity
- Toxicity to fish: LC50 Pimephales promelas (Fathead minnow, weight 0.9 g) <1.0 mg/L/96 hr; static bioassay without aeration, pH 7.2-7.5, hardness 40-50 mg/L as CaCO3, alkalinity 30-35 mg/L, 18 deg C
- Toxicity to daphnia and other aquatic invertebrates: EC50; Species: Daphnia magna (Water flea, 1st instar larvae); Conditions: freshwater, renewal; Concentration: >100 ug/L for 48 hr; Effect: intoxication, immobilization /97.3% purity
- Toxicity to algae: EC50; Species: Pseudokirchneriella subcapitata (Green algae); Conditions: freshwater, static; Concentration: 2500 ug/L for 5 days; Effect: population abundance /95.88% purity
- Toxicity to microorganisms: no data available
Persistence and degradability
AEROBIC: Benfluralin is metabolized with a half-life of 20 to 86 days under aerobic soil conditions(5). Biodegradation of benfluralin in soil occurs via oxidative and reductive pathways(1). Oxidation classically occurs in aerobic soils and reduction in anaerobic soils. However, in flooded field soils, both oxidation and reduction products have been observed(1). In field soil, oxidative biodegradation of benfluralin leads to dealkylation products followed by reduction of nitro group to amino products(1,4). Rates of biodegradation of benfluralin is dependent on soil temperature and moisture content and the rate is faster at 30 deg C compared to 4 deg C, and in dry soil compared to water-saturated field soils(2-3). The biodegradation is faster in soils containing higher organic carbon contents(3,5). The biodegradation half-lives of benfluralin in a loam and a sandy loam soil were 0.7 month and 1.5 months, respectively, at 30 deg C(3).
Bioaccumulative potential
The whole body BCF value measured in fish was 1,580(1). According to a classification scheme(2), this BCF value suggests the potential for bioconcentration of benfluralin in aquatic organisms is very high(SRC).
Mobility in soil
Soil adsorption (Kd) coefficients for benfluralin in 10 Wisconsin soils ranged from 4.2-30.3, with a mean value of 16.7 (1). Other investigators have reported Koc values of 10,700(2), 10,715(4), and 9,000(3). Benfluralin was much more highly adsorbed to soil than other dinitroaniline herbicides(5). In soil thin layer chromatography experiments, the Rf (retention factor) range was 0-0.03 for benfluralin(6). Therefore, it was concluded that benfluralin was immobile in soil(6). In the EPA Registration Eligibility Decision document for benfluralin, it was reported that the Koc ranged from 9,840-11,660(7). According to a classification scheme(8), this range of Koc values indicates that benfluralin is expected to have no mobility in soil(SRC).
Other adverse effects
no data available
Disposal methods
ProductThe 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.
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
Safety, health and environmental regulations specific for the product in question
European Inventory of Existing Commercial Chemical Substances (EINECS)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/
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.