ジクロラール尿素

0.0074 PPM SOL IN WATER @ 25 °C

At 25 °C: 18.8 mg/100 g ethanol, 16.8 mg/100 g acetone, 2.5 mg/100 g ether, 5.5 mg/100 g n-hexane, 3.0 mg/100 g benzene, 1.0 mg/100 g chloroform

STABLE TO UV LIGHT ON FILTER PAPER; THERMALLY UNSTABLE

Stable to dilute acids at room temp. Decomposed by alkalis.

TOXICITY OF MIXTURES OF TRICHLOROPROPIONITRILE (TCHP) WITH DICHLORAL UREA (DCHU) & TRICHLOROACETIC ACID (TCHA) WITH DICHLORAL UREA WERE STUDIED IN 167 WHITE RATS & CATS. THE HERBICIDE COMBINATIONS EMPLOYED ARE IN ACTUAL AGRICULTURAL USE IN WESTERN PROVINCES OF UKRAINE, ESP IN LVOV PROVINCE. ACUTE POISONING BY COMBINATIONS WAS DIFFERENT FROM THAT BY INDIVIDUAL AGENTS; TOXICITY WAS LOWERED (NO 100% MORTALITY). MORTALITY INCIDENCE WAS 18.8% FOR TCHA & DCHU (6 OF 32 ANIMALS) & FOR TCHP & DCHU, 8.3% (2 OF 24 ANIMALS). MAIN SIGNS OF POISONING FROM INDIVIDUAL HERBICIDES WERE ABSENT WITH THE MIXTURES.

MICROBIAL DECOMPOSITION OF 12 & 24 MG/KG DICHLORAL UREA STARTED IMMEDIATELY AFTER IT WAS MIXED WITH MEADOW PODZOLIC SOIL OR A PODZOLIZED CHERNOZEM, & 10-12 DAYS LATER AMT OF FORMED TRICHLOROACETIC ACID WAS EQUAL TO 50% OF TRICHLOROACETIC ACID FOUND IN SOIL SAMPLES MIXED WITH SODIUM TRICHLOROACETATE IN DOSES EQUIVALENT TO DOSES OF DICHLORAL UREA.

LOW SKIN IRRITANCY. CHRONIC FEEDING IN RATS CAUSED FUNCTIONAL ALTERATIONS IN BLOOD, LIVER AND KIDNEY.

SLIGHT CYTOGENETIC EFFECT WAS FOUND IN MOUSE BONE-MARROW CELLS TREATED WITH DICHLORAL UREA.

1. WASH CONTAMINATED SKIN WITH SOAP & WATER. 2. FLUSH CONTAMINATED EYES WITH COPIOUS AMOUNTS OF FRESH WATER FOR 15 MINUTES. 3. INGESTIONS OF SMALL AMOUNTS (LESS THAN 10 MG/KG BODY WEIGHT) OCCURRING LESS THAN AN HOUR BEFORE TREATMENT, ARE PROBABLY BEST TREATED BY: A. SYRUP OF IPECAC, FOLLOWED BY 1-2 GLASSES OF WATER. DOSE FOR ADULTS & CHILDREN OVER 12 YEARS: 30 ML. DOSE FOR CHILDREN UNDER 12 YEARS: 15 ML. B. ACTIVATED CHARCOAL: /PRC: 30 G ACTIVATED CHARCOAL IN 3-4 OZ WATER (CHILDREN), 100 G IN 8-10 OZ WATER (ADULT)/...AFTER VOMITING STOPS. C. SODIUM OR MAGNESIUM SULFATE, 0.25 G/KG IN TAP WATER, AS A CATHARTIC. /PESTICIDES OF LOW OR MODERATE TOXICITY/

4. INGESTIONS OF LARGE AMOUNTS (MORE THAN 10 MG/KG) OCCURRING LESS THAN AN HR BEFORE TREATMENT, SHOULD PROBABLY BE TREATED BY GASTRIC LAVAGE: A. INTUBATE STOMACH & ASPIRATE CONTENTS. B. LAVAGE STOMACH WITH SLURRY OF ACTIVATED CHARCOAL.../&/ LEAVE 30-50 G ACTIVATED CHARCOAL IN THE STOMACH BEFORE WITHDRAWING TUBE. C. SODIUM SULFATE, 0.25 G/KG IN TAP WATER, AS A CATHARTIC. CAUTION: HYDROCARBONS (KEROSENE, PETROLEUM DISTILLATES) ARE INCLUDED IN SOME FORMULATIONS OF THESE CHEMICALS. INGESTION OF VERY LARGE AMOUNTS MAY CAUSE CNS DEPRESSION. IN THIS CASE, IPECAC IS CONTRAINDICATED. ALSO, GASTRIC INTUBATION INCURS A RISK OF HYDROCARBON PNEUMONITIS. FOR THIS REASON OBSERVE THE FOLLOWING PRECAUTIONS: (1) IF THE VICTIM IF UNCONSCIOUS OR OBTUNDED & FACILITIES ARE AT HAND, INSERT AN ENDOTRACHEAL TUBE (CUFFED, IF AVAILABLE) PRIOR TO GASTRIC INTUBATION. (2) KEEP VICTIM'S HEAD BELOW LEVEL OF STOMACH DURING INTUBATION & LAVAGE /PRC: TAP WATER IN CHILDREN, ISOTONIC SALINE IN ADULTS/ (TRENDELENBURG, OR LEFT LATERAL DECUBITUS, WITH HEAD OF TABLE TIPPED DOWNWARD). KEEP VICTIM'S HEAD TURNED TO THE LEFT. (3) ASPIRATE PHARYNX AS REGULARLY AS POSSIBLE TO REMOVE GAGGED OR VOMITED STOMACH CONTENTS. /PESTICIDES OF LOW OR MODERATE TOXICITY/

5. INGESTIONS OCCURRING MORE THAN AN HR BEFORE TREATMENT ARE PROBABLY BEST TREATED ONLY BY ACTIVATED CHARCOAL /PRC: 30 G ACTIVATED CHARCOAL IN 3-4 OZ WATER (CHILDREN), 100 G IN 8-10 OZ WATER (ADULT)/...& SODIUM OR MAGNESIUM SULFATE, 0.25 G/KG... 6. THERE ARE NO SPECIFIC ANTIDOTES FOR THESE CHEMICALS. BECAUSE MANIFESTATIONS OF TOXICITY DO OCCASIONALLY OCCUR IN PECULIARLY PREDISPOSED INDIVIDUALS, MAINTAIN CONTACT WITH VICTIM FOR AT LEAST 72 HR SO THAT UNEXPECTED ADVERSE EFFECTS CAN BE TREATED PROMPTLY. /PESTICIDES OF LOW OR MODERATE TOXICITY/

Used as pre-emergence herbicide for sugar beets, vegetables, and other crops; Union Carbide superseded product which is currently of little commercial interest; [HSDB]

Farming (Pesticides) [Category: Industry]

PREEMERGENCE HERBICIDE

UNION CARBIDE SUPERSEDED PRODUCT BELIEVED TO BE CURRENTLY OF LITTLE COMMERCIAL INTEREST.

IN THE EARLY 1950'S SEVERAL SUBSTITUTED UREAS WERE DEVELOPED, THE FIRST OF WHICH, DICHLORAL UREA, ATTAINED BRIEF COMMERCIAL USE FOR THE SELECTIVE CONTROL OF WEEDS IN SUGARBEETS.

FORMERLY FOR USE ON SUGAR BEETS & CERTAIN OTHER FIELD & VEGETABLE CROPS.

Miscible with other wettable-powder herbicides.