Methamidophos

                Pesticide Registration Number:PD94105-4 (60%SL)

              Production Standard Number:Q/320722?HB08-1998

            Pesticide Registration Number:PD91101-19 (70%TECH)

            Production License Number:XK13-200-00103

            Production Standard Number:GB15954－1995)

            CAS NO:10265-92-6,CSC Number:0176,Packing Group:II.

            60%SL Methamidophos:UN Number:3017,Class or Division:6.1(3).

              Custom,Immigration,Quarantine Code (CIQ:H.S.code):38081090

          Shipping Name:ORGANOPHOSPHOROUS PESTICIDE, LIQUID, TOXIC

          Main Hazard: Toxic Liquid. Subsidiary Risk: Flammable.

  Shipping Name:ORGANOPHOSPHORUS PESTICIDE,LIQUID,TOXIC,FLAMMABLE, flash point not less than 23℃ (60% Methamidophos SL)

70%Technical LD50:30mg/kg.70%TECH,73%TECH,60%SL Methamidophos is an organic phosphorous insecticide of outer packing. Methamidophos is made out the invoices of 13% Volue-Added Tax.

  Method of analysis:Liquid chromatogarphy Method of analysis

 60%SL methamidophos appearance:light yellow sticky Liquid,LD50 =19-21mg/kg,

 Low temperature stability:eligibility;

 Quantity of heat store stability:eligibility;

 dissolve quality:eligibility

 50%EC methamidophos :Emulsion stability:eligibility;

 Low temperature stability:eligibility;

 Quantity of heat store stability:eligibility.

 70%TC methamidophos appearance:colorless or light yellow sticky Liquid.

 I.PROPERTY

 Its appearance:Pure product is white crystal substance like needle; Industry product is colorless or light yellow sticky Liquid.
  General Name:Methamidophos Commodity Name:Tamaron

 Physical and chemical properties:
  1) Pure product is white crystal, and melting point is 44.5 degrees centigrade .
  2) Technical product is yellowish oily liquid.
  3) It easily dissolves in water, alcohol, ketone, and difficultly dissolves in  other organic solvents.
  4) It is hydrolyzed slowly in medium of weak acid and weak alkali, and easily hydrolyzed with strong alkali.
  5) It is corrosive to mild steel and copper-containing alloy.

  Other name:O,S-Dimethyl phosphoramidothioate;O,S-Dimethyl thiophosphoramide ;Phosphoramidothioic acid o,s-dimethyl ester
Molecular Formula :C2H8NO2SPN Molecular Volume:141

 Structural Formula:           

 Applications:
  1) It is an organic phosphorus insecticide and acaricide with contact and stomach poisoning action.
  2) It can effectively prevent and cure many injurious insects of varieties crops, such as rice fly louses, rice leafhoppers; rice leaf rollers, rice-plant skippers, armyworms, cotton red spiders, aphids, corn borers, and mole crickets, and also available for the antibody type aphids and mites.
  3) The dose is about active ingredient content 0.5-1kg/ha.

 II. USES:

 The product has fair action of killing insect and internal absorption, and can  kill all kinds of insects, especially insects harmful to crops like rice,wheat cotton,maize,fruit tree,peanut,etc.

 Toxicity:
  1) High poisoning to human being and cattle.
  2) For big albino rat,the acute oral LD50 is 30mg/kg, and acute dermal LD50 is 50-110mg/kg.