calcium cyanamide properties

The citrated calcium salt is used in the treatment of alcoholism. A cyanide compound which has been used as a fertilizer, defoliant and in many manufacturing processes. Cyanamide Accession Number DB02679 Description. It crystallizes in hexagonal crystal system with space group R3m and lattice constants a = 3.67 Å, c = 14.85 Å.[11][12]. It soluble in cold water (hydrolysis on the anion). Properties, SDS, Applications, Price. This chemical is used as fertilizer and is commercially known as nitrolime. The conversion is conducted in slurries, consequently most commercial calcium cyanamide is sold as an aqueous solution. A colorless to gray, odorless solid. Through hydrolysis in the presence of carbon dioxide, calcium cyanamide produces cyanamide:[clarification needed]. In fact, the initial target product sodium cyanidecan also be obtained from calciu… This chemical is used as fertilizer[3] and is commercially known as nitrolime. Februar 1916. endstream endobj 24 0 obj <> endobj 25 0 obj <>/Border[0 0 0]/Rect[79 110 124 125]/Subtype/Link/Type/Annot>><>/Border[0 0 0]/Rect[139 110 160 125]/Subtype/Link/Type/Annot>><>/Border[0 0 0]/Rect[342.58 110.0 363.58 125.0]/Subtype/Link/Type/Annot>>]/Contents[28 0 R 29 0 R 31 0 R 32 0 R 33 0 R 34 0 R 35 0 R 36 0 R]/CropBox[0 0 612 792]/MediaBox[0 0 612 792]/Parent 21 0 R/Resources<>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/Type/Page>> endobj 26 0 obj <>stream Due to this, tears start coming out of the eyes. While pure calcium cyanamide is nonvolatile and noncombustible, commercial grades may contain small amounts of calcium carbide which will produce acetylene in containers and processing vessels. Absorption of water during handling or storage of technical calcium cyanamide may cause explosion [Pieri, M. Chem. [5] Fritz Rothe, a colleague of Frank and Caro, succeeded in 1898 in overcoming problems with the use of calcium carbide and clarified that at around 1,100 °C not calcium cyanide but calcium cyanamide is formed in the reaction. (11.46) CaC 2 + N 2 → 1000 ∘ C CaCN 2 + C As in the case of the Haber process for the synthesis of ammonia, this reaction represents a way of converting elemental nitrogen into a compound (nitrogen fixation). Term contracts & credit cards/PayPal accepted. h��Yio��+�Q�!L�` �����Q��,�Ê\�(� W����^���Aʢ� 1�b���Q����5�g�����L���b"�J41�\=>�!�XMn � m�&YSl�&9�-��f�O�W��a巿�߹y:���Ë��볋�s^^_��Y���������������|qp��G? Calcium cyanamide is the inorganic compound with the formula CaCN2. The application rate should be approximately 350 kg calcium cyanamide per hectare, corresponding to a dose of 35 grams of calcium cyanamide per square meter. Health & Regulatory Guidelines. Calcium cyanamide Identifications. Frank and Caro developed this reaction for a large-scale, continuous production process. Characteristics. Properties of calcium cyanamide: White (technical product - dark-gray because of the impurity of coal). [14], Cyanamide calcium salt, Lime Nitrogen, UN 1403, Nitrolime, Except where otherwise noted, data are given for materials in their. It is a colorless and intensely smelling gas. Image 1: Calcium cyanamide provides control of soil-borne diseases, newly germinated weeds, and assists with residue breakdown when applied as a fertiliser Effect on weeds The herbicide action of calcium cyanamide acts only in the top 3–4 cm of the soil. Because calcium cyanamide contributes not only nitrogen but also lime, and also has a herbicidal, bactericidal, and fungicidal effect, it can be called a multifunctional nitrogen fertilizer. 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