REFERENCES For the Ministry of Agriculture and Cooperatives Thailand
fumigant phosphine (PHOSPHINE)
phosphine fumigant used for agricultural pest and pesticide programs. Was first used by Dr. Werner Freyberg in 1930, packed in a bag with aluminium phosphide 57% and 43% other substances after World War 2, has produced a phosphine. tablets and pellets American countries have begun to take the gas phosphine used in the year.. in 1958 to eradicate pests of agricultural products under certified by the FDA. That is safe, non-toxic gases phosphine residues are commonly used together. In particular, the Cabinet of tobacco for phosphine gas that has a lot of reaction from aluminium phosphide or magnesium phosphide with water vapor in the air. The phophide + water → hydrogen phosphide + powder reaction products of chemical reactions is AIP + 3H2O → Al (OH) 3 + PH3 or Mg3 P2 + 3H2O → 3 Mg (OH) 2 + PH3 Aluminum phosphide wide and. ACC magnesium phosphide devices are compounds that have the effect of insecticide as a phosphine (PH3) alloy magnesium phosphide us to qualify, preferably due to break down the gas. the faster the properties of phosphine (PH3) is 1. the gas is colorless. A slight odor Like garlic, 2. The formula is PH3 Molecular Weight 34.1 3. 4. 1.2 times heavier than air Boiling Point 5. - 87.4 ° C 6. soluble, about 26% (by volume at 17 ° C) 7. phosphine gas concentrations that would burst. the fire was eight. Reacts with metals such as gold, copper and silver is toxic to insects and warm-blooded animals 9. High 10. No residues 11. There Cieling concentration 0.3 PPM "aluminum phosphide Grand" or, for short, "Jodie Finkelstein" a substance that is in the form of compounds phosphide at two types of aluminum phosphide website (aluminium. phosphide) and magnesium phosphide end (magnesium phosphide) produced in multiple formats. Fumigant in pill form will be available to the agricultural minister to sack or bag. Cabinet or shed The manner of distribution of gas quickly. Take 5-7 days in the cabinet and react with metals such as copper, gold and silver, so take the time to break up very well for about five hours is no residue of the drug this process Laehi Aluminium phosphide 1. . If this is the case with the transport container. When the door opened, and out of the Unstuffed out of the closet to replace the outside air. Since the drug is a gas And features a very low boiling point. Therefore, it dissolves in the air and when heated to make a drug that dissolves away, the easier it will emanate from the nature of its note , in case of container shipping. Opening and closing cabinets and Fumi Guest Time 28 days duration and including the day of Fumi guest. Date: 02.25.16 The total duration will be 33 days of the drug, it will break off and float it. And when it turns out the medicine cabinet, it will break out.
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