Product ID:4250 CHECK-MARK IR-140 "FORMERLY SEM-AX"
MSDS Date:09/21/1993
FSC:6840
NIIN:00F008613
MSDS Number: BYHRW

Emergency Phone: 800-527-9919/214-438-1381

Info Phone: 800-527-9919/214-438-1381

Preparer: R STOLLEY

Cage: 0TTE8

Telephone: 214-438-4144

Cage: 0TTE8

DISULFOTON, O,O-DIETHYL-A

CAS: 298-04-4

RTECS: TD9275000

ACGIH TLV: 0.1 MG/CUM

EPA Report Quantity: 1 LB

DOT Report Quantity: 1 LB

LD50 LC50 Mixture:ORAL LD50(RAT): 2 MG/KG (SEE SUPP)
Routes of Entry: Inhalation:YES Skin:YES Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:POISONING MAY OCCUR AS A RESULT OF
EXPOSURE. MAY BE FATAL IF SWALLOWED. MAY BE ABSORBED THROUGH SKIN &
MAY CAUSE IRRITATION. MASSIVE CONTINUOUS OVEREXPOSURE CAN YIELD
LIFE THREATENING SYMPTOMS.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION, REDDENING, NAUSEA, SWEATING,
TIGHTNESS IN CHEST, CONSTRICTION OF PUPILS, STOMACH PAINS,
VOMITING, DIARRHEA, MUSCULAR TREMORS, CONVULSIONS, UNCONTROLLED
MUCOUS SECRETION, COMA.

First Aid:INHALATION: REMOVE TO FRESH AIR. GIVE CPR/OXYGEN IF NEEDED.
EYES: FLUSH W/WATER FOR 15 MINS. SKIN: WASH W/SOAP & WATER.
INGESTION: DON'T INDUCE VOMITING/GIVE ANYTHING BY MOUTH TO AN
UNCONSCIOUS PERSON . IF CONSCIOUS, GIVE LARGE AMOUNTS OF WATER TO
DILUTE STOMACH CONTENTS. OBTAIN MEDICAL ATTENTION IN ALL CASES.
NOTES TO PHYSICIAN: GASTRIC LAVAGE IS INDICATED IF MATERIAL TAKEN
INTERNALLY. (SEE SUPP)

Extinguishing Media:FOAM, ALCOHOL FOAM, CO2, DRY CHEMICAL, WATER SPRAY.
Fire Fighting Procedures:WEAR A SELF-CONTAINED BREATHING APPARATUS &
FULL PROTECTIVE GEAR.

Spill Release Procedures:STOP LEAK & CONTAIN. PICK UP AS MUCH AS
POSSIBLE BY VACUUMING/SWEEPING UP MATERIAL. MATERIAL MAY BE
REUSED/PLACED IN A CLOSED LABELED CONTAINER. FLOOD CONTAMINATED
AREA W/DETERGENT & WATER, THEN FLUSH DOWN DRAIN.

Handling and Storage Precautions:KEEP CONTAINER CLOSED. STORE IN A
COOL, DRY PLACE. STORE IN ORIGINAL CONTAINER. DON'T STORE OUTDOORS.
DON'T STORE NEAR SEEDS, FEEDS, FOOD STUFFS.
Other Precautions:AVOID DIRECT CONTACT W/SKIN & EYES. AVOID
CONTAMINATING WATER SOURCES. DON'T GRAZE ANIMALS ON TREATED AREAS.
KEEP OUT OF REACH OF CHILDREN & ANIMALS. READ LABEL CAREFULLY
BEFORE USE. STORE BETWEEN 35- 120F.

Respiratory Protection:WEAR A DUST MASK UNDER NORMAL CONDITIONS IF
DUSTY CONDITIONS PREVAIL. WEAR A NIOSH/MSHA APPROVED PESTICIDE
RESPIRATOR IN AN EMERGENCY.
Ventilation:PROVIDE ADEQUATE VENTILATION/CONTROLS TO MAINTAIN & MEET
OSHA REQUIREMENTS.
Protective Gloves:RUBBER
Eye Protection:SAFETY GOGGLES
Work Hygienic Practices:USE GOOD INDUSTRIAL HYGIENE PRACTICES.
Supplemental Safety and Health
ORAL LD50 INFORMATION: O,O-DIETHYL S-(ETHYLTHIO)ETHYL)
PHOSPHORODITHIOATE. FIRST AID: IF CHOLINESTERASE INHIBITION
SYMPTOMS PRESENT, ATROPINE SULFATE IS ANTIDOTAL. 2-PAM IS ALSO
ANTIDOTAL & MAY BE ADM INISTERED IN CONJUNCTION W/ATROPINE. DON'T
GIVE MORPHINE. WATCH FOR PULMONARY EDEMA. PLACE IN OXYGEN TENT, IF
IT OCCURS.

Solubility in Water:NEGLIGIBLE
Appearance and Odor:OPAQUE, GRANULAR, BEIGE/GREY W/AMYL ACETATE ODOR.

Stability Indicator/Materials to Avoid:YES
STRONG ALKALINE MATERIALS.
Stability Condition to Avoid:SUSTAINED TEMPS >100F.
Hazardous Decomposition Products:BY BURNING: CO, SULFUR DIOXIDE,
PHOSPHORUS PENTOXIDE, ETHANETHIOL.

Waste Disposal Methods:PESTICIDE WASTES ARE ACUTELY HAZARDOUS. DISPOSE
OF IAW/FEDERAL, STATE & LOCAL REGULATIONS.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.