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Can pyridine derivatives only be used in the field of pesticides?
Wiki User
∙ 11y ago
Pyridine derivatives are value added intermediates and are used for the manufacture of active ingredients in the pharmaceutical, agricultural and nutritional industries as well as for corrosion inhibition in the oilfield industry. 2,6-Dichloronicotinic acid is used for preparation of pyridine derivatives as inhibitors of human 11 hydroxysteroid dehydrogenase type 1 enzyme.
Wiki User
∙ 11y ago
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How do you distill the pyridine?
The most convenient ways often involve complexing the pyridine with other molecules. this will change the chemical proporties of both, easing extraction. One method is co-evaporating the pyridine off with toluene. Adding Toluene in a 1:1 ratio will form a complex with a lower boiling point, taking both the pyridine and toluene out of the mixture. Another method is complexing the pyridine with CuSO4. This is done by washing the reaction mixture with a saturated aqueous CuSO4 solution and then separating the layers. The pyridine will remain in the aqueous layer with the CuSO4. Keep in mind that these, and most other similar processes (like acid washes) will only remove free pyridine, and that some pyridine may be left behind in complexes with your product (salts).
Why do farmers use chemicals?
Chemical fertilizers and herbicides cost money. Spraying the edge of a field where the crops are not growing would be a waste of resources. In the case of fertilizers, spraying the edge of the field would benefit only the growth of natural weeds and hedgerows.
What is a liquid fossil fuels?
Gasoline, diesel, and kerosene are. The above are all derivatives of the only liquid fossil fuel called oil. The above are separated by fractional distillation of oil
Does helium conduct electrcity?
Only at very high electric field strengths, sufficient to ionize some of the helium atoms.
What is the chemical that farmers use to kill insects?
Insecticide. If you are doing some sort of test that contains this very question, the answer would be "Pesticide." Note, however, that this is a too-general answer, since pesticides cover not only insects, but weeds, fungi and bacteria that invade and reduce crop yields of crops.
How do you distill the pyridine?
The most convenient ways often involve complexing the pyridine with other molecules. this will change the chemical proporties of both, easing extraction. One method is co-evaporating the pyridine off with toluene. Adding Toluene in a 1:1 ratio will form a complex with a lower boiling point, taking both the pyridine and toluene out of the mixture. Another method is complexing the pyridine with CuSO4. This is done by washing the reaction mixture with a saturated aqueous CuSO4 solution and then separating the layers. The pyridine will remain in the aqueous layer with the CuSO4. Keep in mind that these, and most other similar processes (like acid washes) will only remove free pyridine, and that some pyridine may be left behind in complexes with your product (salts).
What could be the slogan on natural pesticides?
the one and only solution against chemical pesticides
What are Bio pesticides?
Bio-pesticides are pesticides that only contain natural materials rather than chemicals found in most other forms. Essentially they are environmently-friendly pesticides.
What are the names of all monobromo derivatives of pentane?
Pentane has three different monobromo derivatives possible. These are: 1-bromopentane, 2-bromopentane, and 3-bromopentane. The reason there are only three derivatives is because of resonance.
What are nitrogen compounds?
Due to the special biological activity of materials containing thiazole in nature, thiazole and its derivatives can not only relieve pain and inflammation, but also be used as fungicides, as well as anti-parasite, anti-tuberculosis, anti-rheumatism and anti-cancer. Nitrogen compounds containing pyridine rings are widely used in the synthesis of drugs for the treatment of cardiovascular and cerebrovascular diseases, allergies, psychosis and AIDS.
What are the release dates for For Export Only Pesticides - 1980 TV?
For Export Only Pesticides - 1980 TV was released on: USA: 1980 USA: October 1982 (Chicago International Film Festival)
Should pesticides and herbicides be used on organically grown crops?
Only those compounds which have been specifically approved for organic use.(By the way, herbicides are pesticides.)
What are the two nitrogenous called purines and pyridine?
The two purines are adenine and guanine. The two pyrimidines are thymine and cytosine. Uracil (only in RNA) is also a pyrimidine.
Why is organic farming so popular?
People have become aware of their benefits, they contain no chemical, pesticides and fertilizers and are grown naturally with manure or compost and only natural pesticides and insecticides are used.
Is peculible a word?
No. Peculate (meaning 'embezzle') has the derivatives Peculated Peculates Peculating Peculation/s Peculators and Peculiar (meaning 'unusual') has the derivatives Peculiarity/ies Peculiarly Peculiars These are the only "pecul~" words I can come up with.
Organic foods are produced without manufactured fertilisers pesticides or weed killers true or false?
Organic foods are produced without manufactured fertilizers. pesticides or weed killers only if they are considered natural.
Example of total partial and original differential equation?
An ordinary differential equation (ODE) has only derivatives of one variable.
