Prometon Safety Data Sheets

Acute toxicity - Category 4, Oral

Skin irritation, Category 2

Eye irritation, Category 2

Specific target organ toxicity – single exposure, Category 3

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2

If inhaled

Following skin contact

Following eye contact

Following ingestion

no data available

no data available

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.

For minor spills. leaks, etc.. follow all precautions indicated on /the pesticide/ label and clean up immediately. Take special care to avoid contamination of equipment and facilities during cleanup procedures and disposal of wastes. In the event of a major spill, fire, or other emergency, call 1-800-535-5053 (INFOTRAC). day or night. Pramitol 4RR

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.

Do not contaminate water, food. or feed by storage ... Store at temperatures above 32 deg F./Pramitol 4RR/

Occupational Exposure limit values

Biological limit values

Eye/face protection

Skin protection

Respiratory protection

Thermal hazards

no data available

Stable to hydrolysis @ 20 deg C in neutral, alkaline or slightly acidic media. ...

Nonflammable.

no data available

no data available

Decomposed by uv radiation.

Acute toxicity

• Oral: LD50 Rat oral 2980 mg/kg Technical
• Inhalation: LC50 Rat inhalation > 3.26 mg/l/4 hr Technical
• Dermal: LD50 Rabbit percutaneous > 2000 mg/kg Technical

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 Salmo gairdneri (Rainbow trout) 20 ppm/96 hr /Technical; conditions of bioassay not specified
• Toxicity to daphnia and other aquatic invertebrates: EC50; Species: Daphnia magna (Water flea, age <24 hr); Conditions: freshwater, static, 21 deg C; Concentration: 78000 ug/L for 24 hr; Effect: intoxication, immobilization /96-99.9% purity
• Toxicity to algae: EC50; Species: Pseudokirchneriella subcapitata (Green algae) Conditions: freshwater, static; Concentration: 98 ug/L for 5 days (95% confidence interval: 88-108 ug/L); Effect: population abundance /97% purity
• Toxicity to microorganisms: no data available

AEROBIC: In one investigation, no changes in phytotoxicity were observed in moist, organic soil treated with 17.5 ppm of prometon after 8 wk of incubation; the soil was adjusted to four pHs: 4.3, 5.3, 6.5, and 7.5(1). Several soil bacteria and fungi are reported to attack prometon(2). However, it is not known whether biodegradation is the primary degradation process in soil(2). Methoxy-s-triazines are more resistant to biodegradation than the corresponding methylthio- and chloro-s-triazines(2). Average soil half-life is reported as 932 days(3). In soil, microbial degradation involves hydrolytic cleavage of the methoxy group to give hydroxy metabolites, and dealkylation of the side chains(4). Persistence in soil can be as much as one year, depending upon soil type, moisture, and the application rate(4).

An estimated BCF of 19 was calculated in fish for prometon(SRC), using a log Kow of 2.99(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

A mean Koc of 524.3 was reported for prometon in 29 soils(1). The Freundlich adsorption constant, K, and exponent, 1/n, for prometon on San Joaquin sandy loam (0.72% organic carbon, 9.7% clay, pH 6.2) at 25 deg C were 2.94 and 0.81, respectively; the corresponding Koc is 408 at a concn of 1 ppm and 305 at a concn of 10.3 ppm(2). Koc values of 572 and 395 were determined in Hanford sandy loam (0.43% organic C, pH 6.05, 7.1% clay, 25.8% silt, 67.1% sand) and Tujunga loamy sand (0.33% organic C, pH 6.3, 4.5% clay, 13.5% silt, 82.0% sand), respectively(3). According to a classification scheme(4), these Koc values suggest that prometon is expected to have low to moderate mobility in soil(SRC). Only 0.1% of prometon applied to a 30.5 cm column and leached under unsaturated flow conditions with 1.2 cm of water/day, was found in leachate at the end of 30 days(5). Prometon was included in mobility class 3, on a scale from 1 (immobile) to 5 (very mobile)(6). Prometon is adsorbed onto soil humic acid, forming stable complexes(7). Ionic, hydrogen bonding, electron donor-acceptor, and covalent forces contribute to the binding. The fact that the basicity of several s-triazines, and hence their tendency to form ionic bonds, is not correlated with adsorptivity indicate that ionic bonding is not the primary factor governing adsorption(7). Data on the free radical content of humic acid adducts, demonstrate that electron donor-acceptor forces are particularly important in the binding of prometon to soil(7). The Freundlich adsorption constant, K, and exponent, 1/n, for prometon on Volcay bentonite at 25 deg C was 150 and 0.64, respectively(8). The mean sorption coefficient (Kd) of 4.86 was given for 59 measured values(9). A pKa of 4.3 at 21 deg C(10) indicates prometon will exist predominately in the unionized form under environmental pHs(SRC). Max adsorption of prometon onto soil organic matter occurred in the pH range 4.2 to 5.2; the addition of HCl or NaOH decreased adsorption(11). Approximately 52% of the prometon adsorbed by organic matter was desorbed with two extractions of 0.1 N NaCl(11).

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/