Glyphosate for Pharmaceutical Intermediates

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Detail :

• English Name -  Glyphosate
• CAS Number -  1071-83-6
• Molecular formula -  C₃H₈NO₅P
• Molecular weight -  169.07
• EINECS number -  213-997-4
• Related Categories -  Agro-Chemicals; Herbicide; herbicide ;2005/70/EU; G Pesticides&Metabolites; OrganophosphorousMethod Specific; Alphabetic; Endocrine Disruptors (Draft)Analytical Standards; EPA; European Community -  ISO and DIN; Herbicides; Method Specific; pesticide; other herbicides
• Agro-Products; Phosphorylating and Phosphitylating Agents; phosphorus compound; pesticide raw materials; chemicobiology; plantgrowth; amino acid derivatives; feed additive; organic ingredients; plant hormones and nucleic acids; pesticide residues, veterinary drugs and chemical fertilizer; pharmaceutical; agricultural herbicide raw materials
• Mol File -  1071-83-6.mol
• Melting point -  230^oC (dec.)(lit.)
• Density -  1.74
• Fp -  230^oC
• storage temp. -  Approx 4^oC
• Water Solubility -  1.2 g/100 mL
• Decomposition -  230_oC
• Merck -  13,4525
• Stability -  Stable. Incompatible with metals, strong oxidizing agents, strong bases. May be light sensitive.
• CAS DataBase Reference -  1071-83-6(CAS DataBase Reference)
• EPA Substance Registry System -  Glycine, N-(phosphonomethyl) -(1071-83-6)
• Chemical Properties -  The pure product is white solid with the m.p being 230oC (decomposition). It is generally insoluble in common organic solvents; at 25^oC, the solubility in water is 1.2%. It is usually made into glyphosate amine salts such as is opropylamine salt and dimethylamine salt, etc. it can also be made from sodium salt. The glyphosate salt is soluble in water.

Application field :

• weeding of orchards and mulberry -  annual weeds -  apply 0.5-1 kg of 10% water preparation per acre; for controlling of perennial weeds, use 1-1.5 kg of water preparation per acre. Mix with 20-30 kg of water and directly spray the stems and leaves.
• Farmland weeding -  for weeds emerged before the reverse cropping and seeding in the farmland, the dosage can be referred to the orchard section. For medication during cotton growth, it requires the application directed spray with a hood. Apply 0.5-0.75 kg of 10% water preparation per acre and mixing with 20-30 kg of water.
• Weeding of leisure place, Tanabe, roadside; during the 4-6 leaf stage of weeds, apply 0.5-1 kg of 10% water per acre, add 100 mL of diesel and mix with 20-30 kg of water and apply spray.
• It was originally used for controlling of grass weeds in rubber plantations and can allow the rubber tapping a year earlier and increase the production capacity of the old rubber tree. It is currently gradually extended to forestry, orchards, mulberry fields, tea plantations, rice and wheat, and rape rotation land. Different kinds of weeds have different sensitivity to glyphosate and therefore the dosage is also different. For example, for weeds such as barnyardgrass, green bristlegrass, Alopecurus aequalis, Eleusine indica, crabgrass, cleavers and other annual weeds, the dosage calculated according to the amount of the active ingredient should be 6~10.5 g/ 100 m₂. For semen plantaginis, horseweed, and dayflower, the dosage of being an active ingredient should be 11.4~15g/100m₂. For cogon, Panicum repens, and reeds, the dosage can be 18~30 g /100m₂, generally the used amount of water should be 3~4.5 kg. Apply direct and even spray to the stems and leaves of the .
• It is a kind of non-selective, post-emergent herbicide with short residue life. It can be used for control of perennial deep roots weeds, annual and biennial weeds, sedges and broadleaf weeds.
• Glyphosate is an organic phosphorus herbicide and its herbicidal property was found by D. D. Baird (US) in 1971. Until to the 1980s, it has become an important species in the world herbicide.