Fenoprop Safety Data Sheets

Acute toxicity - Category 4, Oral

Skin 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

If inhaled

Following skin contact

Following eye contact

Following ingestion

INHALATION: Irritating to nose and throat. May cause nausea, vomiting, lethargy and incoordination. May cause kidney and liver damage. EYES: Irritation. May cause corneal injury or burn. SKIN: Irritation. (USCG, 1999)

Special Hazards of Combustion Products: Hydrogen chloride may be liberated. (USCG, 1999)

Wear self-contained breathing apparatus for firefighting if necessary.

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.

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.

A mobile unit for detox and decontamination of water soluble organics spilled in water includes the use of activated carbon. Activated carbon effectively removes ... silvex ... /SRP: dependent on pH/ ... however, if other organic cmpds are present at the spill site, competition for activated carbon may prevent complete absorption ... adequate contact with carbon can alleviate ... this problem.

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.

Handle carefully. Do not contaminate water, food or feed by storage ... of this product.

Occupational Exposure limit values

Biological limit values

Eye/face protection

Skin protection

Respiratory protection

Thermal hazards

No rapid reaction with air. No rapid reaction with water.

Emulsifiable concentrates of silvex ester have shelf lives of from 1 to 3 yr.

Technical acid /is/ nonflammable.A halogenated organic acid derivative. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in it to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymer

no data available

no data available

When heated to decomposition it emits toxic chloride fumes.

Acute toxicity

• Oral: LD50 Rat oral 650 mg/kg
• Inhalation: no data available
• Dermal: no data available

Skin corrosion/irritation

Serious eye damage/irritation

Respiratory or skin sensitization

Germ cell mutagenicity

Carcinogenicity

Reproductive toxicity

STOT-single exposure

STOT-repeated exposure

Aspiration hazard

• Toxicity to fish: LC50 Lepomis macrochirus (Bluegill) 83,000 ug/L/48 hr. /Conditions of bioassay not specified in source examined
• Toxicity to daphnia and other aquatic invertebrates: LC50; Species: Daphnia magna (Water flea, age <24 hr); Conditions: freshwater, static, 19.6-20.8 deg C, pH 7.1-8.3, hardness 77 mg/L CaCO3, alkalinity 49 mg/L CaCO3, dissolved oxygen >90%; Concentration: >140000 ug/L for 48 hr />99% purity
• Toxicity to algae: no data available
• Toxicity to microorganisms: no data available

AEROBIC: Half-lives for biodegradation of 2,4,5-TP in three Saskatchewan, Canada prairie soils were 13, 13 and 10 days for heavy clay loam, clay loam and sandy loam, respectively(1). Negligible degradation was observed in air-dried soils(1). Biodegradation of 2,4,5-TP was tested in Mardin, Honeoye and Dunkirk silt loam soil samples from areas in NY, resulting in complete disappearance in greater than 47, 124 and 205 days, respectively(2). 2,4,5-TP was shown to have an aerobic half-life of 16 days in soil(5). 2,4,5-Trichlorophenol has been identified as a product of the biodegradation of 2,4,5-TP(6). 2,4,5-TP was shown to have a half-life of 8 and 10 days in sandy loam, 15 and 21 days in forest soil, 13 days in clay loam and 14 days in grassland soil(7). In soil, 2,4,5-TP was reported to degrade more slowly than 2,4-D(8). No biodegradation of 2,4,5-TP was observed after 50 days incubation in Hamilton Harbour water from Ontario, Canada(3). An initial concn of 2,4,5-TP of 107.5 ppm was completely degraded in lagoon water in 9 days after 100 ml of 2,4,5-trichlorophenol acclimated water was added and incubated at 20 to 21 deg C with constant aeration(4). 2,4,5-TP, incubated at 25 deg C with sewage sludge in an aeration tank for 47 days gave an unchanged concentration of the S enantiomer and a 40% decrease in the R enantiomer(9).

A BCF of 58 was reported in fish in flowing water for 2,4,5-TP(1). According to a classification scheme(2), this BCF data suggests the potential for bioconcentration in aquatic organisms is moderate(SRC). 2,4,5-TP does not appear to bioconcentrate more than 10 fold(3).

Log Koc values for 2,4,5-TP have been reported as 1.87 and 2.03(1), giving Koc values of 74 and 107. According to a classification scheme(2), these Koc values suggest that 2,4,5-TP will have high mobility in soil(SRC). 2,4,5-TP had sorption values of 2.7-5.9 mg/kg at different conditions in soil with a pH of 7.4, and sorption values of 0.2-1.1 mg/kg in soil with a pH of 8.2(3). 2,4,5-TP had reported sorption coefficients of 308-9016 mL/g(4). 2,4,5-TP is expected to be negatively charged and will not be readily absorbed making it more mobile in soil(5). The pKa of 2,4,5-TP is 2.84(6), indicating that this compound will exist almost entirely in anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(7).

no data available

Product

Contaminated packaging

no data available

no data available

Information on revision

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/