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Carbon disulfide (also spelled as carbon disulphide) is an inorganic compound with the chemical formula CS 2 and structure S=C=S. It is also considered as the anhydride of thiocarbonic acid . [ 8 ] It is a colorless, flammable, neurotoxic liquid that is used as a building block in organic synthesis.
Carbon, hydrogen, and oxygen are widely available respectively in carbon dioxide and in water. Although nitrogen makes up most of the atmosphere , it is in a form that is unavailable to plants. Nitrogen is the most important fertilizer since nitrogen is present in proteins ( amide bonds between amino acids ), DNA ( puric and pyrimidic bases ...
Many secondary amines react with carbon disulfide and sodium hydroxide to form dithiocarbamate salts: [2] R 2 NH + CS 2 + NaOH → R 2 NCS − 2 Na + + H 2 O. Ammonia reacts with CS 2 similarly: 2 NH 3 + CS 2 → H 2 NCS 2 − NH 4 + Dithiocarbamate salts are pale colored solids that are soluble in water and polar organic solvents.
As plants absorb the nutrients from the soil water, the soluble pool is replenished from the surface-bound pool. The decomposition of soil organic matter by microorganisms is another mechanism whereby the soluble pool of nutrients is replenished – this is important for the supply of plant-available N, S, P, and B from soil. [9]
As typical for xanthates, potassium amyl xanthate is prepared by reacting n-amyl alcohol with carbon disulfide and potassium hydroxide. [1] CH 3 (CH 2) 4 OH + CS 2 + KOH → CH 3 (CH 2) 4 OCS 2 K + H 2 O. Potassium amyl xanthate is a pale yellow powder. Its solutions are relatively stable between pH 8 and 13 with a maximum of stability at pH 10 ...
Sodium diethyldithiocarbamate typically crystallizes from water as the trihydrate NaS 2 CN(C 2 H 5) 2. 3H 2 O. The anhydrous salt and the trihydrate are often used interchangeably. [1] Sodium diethyldithiocarbamate is obtained by treating carbon disulfide with diethylamine in the presence of sodium hydroxide: CS 2 + HN(C 2 H 5) 2 + NaOH → NaS ...
Phosphorus sulfides comprise a family of inorganic compounds containing only phosphorus and sulfur.These compounds have the formula P 4 S n with n ≤ 10. Two are of commercial significance, phosphorus pentasulfide (P 4 S 10), which is made on a kiloton scale for the production of other organosulfur compounds, and phosphorus sesquisulfide (P 4 S 3), used in the production of "strike anywhere ...
These include controlled water solubility of the material by semi-permeable coatings, occlusion, protein materials, or other chemical forms, by slow hydrolysis of water-soluble low molecular weight compounds, or by other unknown means. Stabilized nitrogen fertilizer: A fertilizer to which a nitrogen stabilizer has been added. A nitrogen ...