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THIONAZIN

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THIONAZIN Basic information

Product Name:
THIONAZIN
Synonyms:
  • Acc 18133
  • acc18133
  • American cyanamid 18133
  • americancyanamid18133
  • Cl 18133
  • cl18133
  • Cynem
  • Cynophos
CAS:
297-97-2
MF:
C8H13N2O3PS
MW:
248.24
EINECS:
206-049-6
Mol File:
297-97-2.mol
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THIONAZIN Chemical Properties

Melting point:
-1.7℃
Boiling point:
bp 80°
Density 
1.204-1.210 g/cm3 (25 ºC)
refractive index 
1.5131 (589.3 nm 25℃)
Flash point:
100 °C
storage temp. 
2-8°C
solubility 
Chloroform (Sparingly), Ethyl Acetate (Slightly), Methanol (Slightly)
form 
liquid
pka
-1.22±0.10(Predicted)
Water Solubility 
1.14g/L(25 ºC)
BRN 
884916
Stability:
Hygroscopic
EPA Substance Registry System
Thionazin (297-97-2)
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Safety Information

Hazard Codes 
T+,Xn,F
Risk Statements 
27/28-40-21/22-36-20/21/22-11
Safety Statements 
36/37/39-38-45-36/37-26-16
RIDADR 
3018
WGK Germany 
2
RTECS 
TF5775000
HazardClass 
6.1(a)
PackingGroup 
I
HS Code 
29339900
Hazardous Substances Data
297-97-2(Hazardous Substances Data)
Toxicity
LD50 in female, male rats (mg/kg): 3.5, 6.4 orally; 11, 17 dermally (Gaines)
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THIONAZIN Usage And Synthesis

Chemical Properties

Amber liquid. Slightly soluble in water; miscible with most organic solvents.

Uses

Nematocide; insecticide.

Definition

ChEBI: Thionazin is an organic thiophosphate.

General Description

Amber liquid. Pure compound is almost colorless; technical product is light brown to tan. Used in insecticides, fungicides, and nematocides. Not registered as a pesticide in the U.S.

Reactivity Profile

Organothiophosphates, such as THIONAZIN, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

Hazard

Toxic by ingestion, inhalation, and skin absorption; cholinesterase inhibitor.

Health Hazard

Extremely toxic by ingestion and skinabsorption; cholinesterase inhibitor; exhibitsacute, delayed, and chronic effect; symptomsof cholinergic effects include excessive salivation, lacrimation, blurred vision, musclespasms, headache, weakness, mental confusion, vomiting, diarrhea, stomach pain, convulsions, and coma; also causes shortnessof breath, respiratory depression, and respiratory paralysis; ingestion of small quantity(0.5–1.59) could be fatal to adult humans;poisoning effects may onset several hoursafter exposure.
LD50 oral (rat): 3.5–6 mg/kg
LD50 oral (mouse): 5 mg/kg
LD50 skin (rat): 8 mg/kg
LD50 skin (guinea pig): 10 mg/kg.

Health Hazard

Cholinesterase inhibitor. (Non-Specific -- Organic Phosphate Compound, Liquid, Poison B). Poisonous; may be fatal if inhaled, swallowed or absorbed through skin. Contact may cause burns to skin and eyes.

Fire Hazard

(Non-Specific -- Organic Phosphate Compound, Liquid, Poison B). THIONAZIN may burn but does not ignite readily. (Non-Specific -- Organic Phosphate Compound, Liquid, Poison B). Fire may produce irritating or poisonous gases.

Safety Profile

Poison by ingestion, skin contact, and ocular routes. A cholinesterase inhibitor type of insecticide. When heated to decomposition it emits highly toxic fumes of NOx, POx, and SOx. See also PARATHION.

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