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MATERIAL SAFETY DATA SHEET UPDATES AVAILABLE AT WWW.GREENBOOK.NET 1
<br /> must be considered if it is inhaled under excessive
<br /> SENCOR DF 75°/D
<br /> DRY PLOWABLE exposure conditions. However,the respirable portion 7. HANDLING AND STORAGE:
<br /> of the silica which may be contained in this product is STORAGE TEMPERATURE (MIN/MAX): None/30
<br /> small,such that excessive inhalation exposure during day average not to exceed 100 F
<br /> HERBICIDE normal conditions of use is unlikely. SHELF LIFE: Time/temperature-dependent. Contact
<br /> BAYER CROPSCIENCE LP NTP: Crystalline silica is classified as an NTP Antici- Bayer for additional information.
<br /> P.O.Box 12014 pated Human Carcinogen-"Substances or groups of SPECIAL SENSITIVITY:Heat,moisture
<br /> 2 T.W.Alexander Drive substances that may reasonably be anticipated to be HANDLING/STORAGE PRECAUTIONS: Store in a
<br /> Research Triangle Park,NC 27709 carcinogens." cool dry area. Store in an area designated specifi-
<br /> For Medical and Transportation Emergencies Only: IARC:IARC has classed crystalline silica as a Group cally for pesticides. Do not store near any materials
<br /> Call 24 hours a day 1-800-3347577 1 carcinogen. "There is sufficient evidence in hu- intended for use or consumption by humans or ani-
<br /> For Product Use Information: Call 1-866-99SAYER mans for the carcinogenicity of inhaled crystalline silica mals. Store away from hormone-type herbicides.
<br /> (1-866-992-2937) (quartz)from occupational sources."
<br /> OSHA:Not regulated 8. PERSONAL PROTECTION:
<br /> 1. CHEMICAL PRODUCT IDENTIFICATION: MEDICAL CONDITIONS AGGRAVATED BY EXPO. EYE PROTECTION REQUIREMENTS:Goggles may
<br /> PRODUCT NAME: SENCOR DF 75%Dry Flowable SURE:No specific medical conditions are known which be useful in some situations to prevent dust or spray
<br /> Herbicide may be aggravated by exposure to the active ingredient mixture from getting into eyes.
<br /> PRODUCT CODE:14175 in this product. However, pulmonary and respiratory l SKIN PROTECTION REQUIREMENTS: Avoid skin
<br /> CHEMICAL FAMILY:Triazinone diseases may be aggravated by exposure to respirable contact. Use chemical-resistant gloves such as nitrile
<br /> CHEMICAL NAME: 4-Amino-6-(1,1-dimethylethyl)-3- crystalline silica. to prevent dermal exposure.
<br /> (methylthio)-1,2,4-triazin-5(4H)-one __ __.__.. ..__...___ _ VENTILATION REQUIREMENTS: Maintain exposure
<br /> SYNONYMS: Metribuzin, Sencor Sprayule, SEN- 4. FIRST AID MEASURES: levels below the applicable exposure limit through the
<br /> CORER,SENCORAL use of general and local exhaust ventilation.
<br /> FORMULA:C8 H14 N4 O S FIRST AID FOR EYES:Hold eye open and rinse slowly RESPIRATOR REQUIREMENTS:Under normal han-
<br /> EPA Registration NO.: 264-738 and gently with water for 15-20 minutes. Remove con- dling conditions no respiratory protection is needed.
<br /> tact lenses, if present, after the first 5 minutes; then However,if needed to prevent respiratory Irritation,a
<br /> 2. COMPOSITION/INFORMATION ON INGREDI- continue rinsing eye. Call a poison control center or NIOSH-approved particulate respirator may be used.
<br /> ENTS: doctor for treatment advice. ADDITIONAL PROTECTIVE MEASURES:Clean wa-
<br /> FIRST AID FOR SKIN:Take off contaminated clothing. ter should be available for washing in case of eye
<br /> INGREDIENT CONCEN- Rinse skin immediately with plenty of water for 15-20 or skin contamination. Educate and train employees
<br /> MCME AS NUMBER EXPOSURE LIMBS 1 TION minutes. Call a poison control center or doctor for in safe use of the product. Follow all label instruc-
<br /> __ treatment advice. tions. Launder clothing separately after use. Wash
<br /> •••••HAZARDOUS INGREDIENTS••••• FIRST AID FOR INHALATION:Move person to fresh thoroughly after handling.
<br /> Sencor(metdbuzin) air. If person is not breathing, call 911 or an am-
<br /> 21087-64-9 OSHA:5.00 mg/m3 TWA 75% bulance; then give artificial respiration; preferably by 19• PHYSICAL AND CHEMICAL PROPERTIES:
<br /> ACGIH:5.00 mg/m3 TWA mouth-to-mouth,if possible. Call a poison control cen- PHYSICAL FORM:Solid
<br /> Ingredient 1972 ter or doctor for further treatment advice. COLOR:Off-white to light gray with bluish cast
<br /> Specific chemical identity is withheld as a trade secret. FIRST AID FOR INGESTION:Call poison control cen- ODOR:Musty
<br /> OSHA:Not Established 5-10% ter or doctor immediately for treatment advice. Have MOLECULAR WEIGHT: 214.3 (for SEN-
<br /> Ir ACGIH:Not Established person sip a glass of water if able to swallow. Do not COR/metribuzin)
<br /> induce vomiting unless told to do so by physician or BOILING POINT:Not applicable
<br /> Specificc
<br /> Ingredient poison control center. Do not give anything by mouth MELTINGIFREEZING POINT:Notapplicable
<br /> chemical identity is withheld as a trade secret
<br /> to an unconscious person. SOLUBILITY IN WATER:1050
<br /> OSHA:Not Established 1-s% NOTE TO PHYSICIAN: No specific antidote is avail- COR/metribuzin) Ppm @ 20 C(Tor SEN-
<br /> ACG
<br /> EN-
<br /> ACGIH:Not Established able. Treat patient symptomatically. In case of intoxi- SPECIFIC GRAVITY:Not established
<br /> Total crystalline silica cation,call the emergency number on page 1. BULK DENSITY:33-37 Ib./cu-ft.
<br /> 14808-60-7 OSHA.10 mg/m3 TWA <1% %VOLATILE BY VOLUME:Not established
<br /> ACGIH:.10 5. FIRE FIGHTING MEASURES: VAPOR PRESSURE: 1.2 x 10-7 Torr @ 20 C (for
<br /> ACGIH:.10 mglm3(TWA) SENCOR/metribuzin
<br /> (`aspirable) FLASH POINT:Not Applicable VAPOR DENSITY: Not established(Air=1)
<br /> 3. HAZARDS IDENTIFICATION: FLAMMABLE LIMITS:
<br /> . . . . . . . . . . . . . . . . . . . . . . UPPER EXPLOSIVE LIMIT(UEL)(%): Not Applicable 10. STABILITY AND REACTIVITY:
<br /> EMERGENCY OVERVIEW LOWER EXPLOSIVE LIMIT(LEL)(%):Not Applicable STABILITY:This is a stable material.
<br /> CAUTION! Color., Off-white to light gray with bluish EXTINGUISHING MEDIA:Water;Dry Chemical HAZARDOUS POLYMERIZATION:Will not occur.
<br /> cast;Form: Solid; Odor: Musty;Harmful if absorbed SPECIAL FIRE FIGHTING PROCEDURES:Keep out INCOMPATIBILITIES:Strong caustic
<br /> .. through skin; Causes eye irritation; Harmful if swal- of smoke,cool exposed containers with water spray. INSTABILITY CONDITIONS:Sustained temperatures
<br /> lowed. Fight fires from upwind position. Use self-contained above 100 F; highly alkaline conditions for extended
<br /> • • • • • • • • breathing equipment. Contain runoff to prevent entry periods of time. Sencor may react with ketones and
<br /> POTENTIAL HEALTH EFFECTS: into sewers or waterways. aldehydes.
<br /> ROUTE(S)OF ENTRY:Inhalation;Skin Contact;Skin UNUSUAL FIRE/ EXPLOSION HAZARDS: During DECOMPOSITION PRODUCTS: Proposed products
<br /> Absorption;Eye Contact the routine handling of this material there should be due to extreme conditions such as fire include: CO2,
<br /> HUMAN EFFECTS AND SYMPTOMS OF OVEREX- little risk of a dust explosion. However,tests on SEN- SO2,methyl mercaptan,amines.OK compound
<br /> POSURE: COR (metribuzin), technical grade, indicate that an 11. TOXICOLOGICAL INFORMATION:
<br /> ACUTE EFFECTS OF EXPOSURE: No speck sys- explosive mixture can develop. Therefore,appropriate
<br /> temic symptoms of overexposure are known to occur preventative measures should be taken. If a large dust Only acute studies have been performed on this prod-
<br /> in humans. Based on EPA Toxicity Category criteria, cloud develops, turn off any devices that may cause uct as formulated. The non-acute information pertains
<br /> .� this product is mildly toxic orally and dermally. In ad- a spark and leave the area until the cloud dissipates. to the active ingredient,metribuzin.
<br /> dition, animal studies have shown that it can cause Additional information on this subject is available upon ACUTE TOXICITY
<br /> moderate eye irritation and slight dermal irritation, request. ORAL LD50: Male Rat: 2365 mglkg--Female Rat:
<br /> CHRONIC EFFECTS OF EXPOSURE: Based on the 1449 mg/kg
<br /> results of animal studies, no deleterious effects or 6. ACCIDENTAL RELEASE MEASURES: DERMAL LD50: Male and Female Rat: >2000 mg/kg
<br /> symptoms would be expected from chronic exposure —Male and Female Rabbit: >5000 mg/kg
<br /> to the active ingredient in this product during normal SPILL OR LEAK PROCEDURES: Isolate area and INHALATION LC50: 4 HR Exposure to Dust-Male
<br /> use. This product contains less than 1%total crys- keep unauthorized people away. Do not walk through and Female Rat: >4.84 mg/L(analytical); 1 HR Ex-
<br /> tailine silica. Excessive long-term exposure to res- spilled material. Avoid breathing dusts and skin con- posure to Dust(extrapolated from 4 HR LC50-Male
<br /> pirabie crystalline silica may cause silicosis,a form of tact. Avoid generating dust(a fine water spray mist, and Female Rat: >19.36 mg/L(analytical)
<br /> disabling,progressive pulmonary fibrosis. Severe and plastic film cover, or floor sweeping compound may EYE EFFECTS: Rabbit: Moderate irritation to the
<br /> .. permanent lung damage may result. be used if necessary). Use recommended protective cornea,iris and conjunctiva was observed with all irri-
<br /> CARCINOGENICITY:This product is not listed as a equipment while carefully sweeping up spilled mate- tation clearing within 7 days post-treatment.
<br /> carcinogen by NTP or IARC,or regulated as a carcino- rial. Place in covered container for reuse or disposal. SKIN EFFECTS:Rabbit: Slight dermal irritant
<br /> gen by OSHA.However,it may contain crystalline silica I Scrub contaminated area with soap and water. Rinse SENSITIZATION:Guinea Pig:Not a dermal sensitizer.
<br /> (quartz),a substance which is classified by NTP as a with water. Use dry absorbent material such as clay SUBCHRONIC TOXICITY:In a three week dermal tax-
<br /> Group 2 carcinogen and by IARC as a Gruop 1 carcino- l granules to absorb and collect wash solution for proper Icity study,rabbits were treated with the active ingre-
<br /> as' gen. Crystalline silica is a naturally-occurring mineral disposal. Contaminated soil may have to be removed dient, metribuzin,at doses of 40,200 or 1000 mg/kg
<br /> component of many sands and clays.Although contro- and disposed. Do not allow material to enter streams, for 6 hours/day,5 daystweek. At the high dose,there
<br /> versial. the carcinogenic potential of crystalline silica sewers,or other waterways or contact vegetation. was evidence of increased cholesterol levels and liver
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