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Carbendazim General,
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Information Profile @ a Glance
General
- Carbendazim is a fungicide
registered in Australia for the control of a wide range of fungal
diseases such as mould, spot, mildew, scorch, rot and blight in a
variety of crops.
- Carbendazim is very
dangerous for water organisms and even a buffer zone of 20 meter is
not protective enough. Alternatives for Carbendazim are available.
- Ingestion and other exposures to the chemical can
cause various symptoms. The type and severity of symptoms varies
depending on the amount of chemical involved and the nature of the
exposure.
Properties
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Melting point 307 ~ 312 ° C
(decomposition).
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0.05g/cm3 density of 1.45 ± (20 ° C).
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The vapor pressure μ Pa 1.3.33 (20 °
C).
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Solubility (24 ° C) : Water 29 (pH
4), 8 (pH 7), 7 (pH 8) mg / L, hexane 0.5 mg / L, benzene 36 mg / L,
ethanol, acetone 300 mg / L, dichloromethane coagulation / L of
ethyl acetate 135mg / L, respectively.
Manufacturing
process
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There are different ways, using my
calcium cyanamide, from calcium cyanamide (lime nitrogen) and water
system from calcium cyanamide hydrogen.
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Filtering out the separation of
calcium hydroxide, and the residue (or may not filter first, the use
of calcium hydroxide as the processes behind deacidification agent
in the synthesis based on dicyanamide methyl formate after
filtration, it is called after filtration; this separation residues
containing toxic organic impurities).
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And then calcium cyanamide hydrogen
chloride solution and sodium hydroxide saved methyl formate in
reaction to form methyl formate-based solution cyanamide, with
o-phenylenediamine condensation carbendazim.
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