Its main constituent, calcium cyanamide, has no residual properties after it has demonstrated its effectiveness as an agricultural chemical (insecticidal, fungicidal, and sterilization), decomposing into its components in the soil, ensuring that it can be used safely. It often occurs as the calcium salt, sometimes also referred to as cyanamide. 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? Application Cyanamide was used as nitrogen source in thermal transformation of metal oxide nanoparticles into nanocrystalline metal nitrides. It is the calcium salt of the cyanamide (CN2−2) anion. 20% nitrogen content) cheaper and faster acting, the role of calcium cyanamide was gradually reduced to a multifunctional nitrogen fertilizer in niche applications. Undiluted cyanamide is a deliquescent, crystalline solid. (2,5) Cyanamide is an organic compound with the formula C N 2 H 2.This white solid is widely used in agriculture and the production of pharmaceuticals and other organic compounds. Properties of calcium cyanamide: White (technical product - dark-gray because of the impurity of coal). The calcium salt of cyanamide, formed when calcium carbide reacts with nitrogen ChEBI CHEBI:64301 Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module No predicted properties have been calculated for this compound. In fact, the initial target product sodium cyanide can also be obtained from calcium cyanamide by melting it with sodium chloride in the presence of carbon:[6]. In the record year 1945, a total of approx. 2012-05-09. In fact, the initial target product sodium cyanidecan also be obtained from calciu… Frank and Caro developed this reaction for a large-scale, continuous production process. 46, 8335 1952]. Properties: Commercial grades may occur as grayish-black lumps of powder. Less run off from soil. Cyanamide Accession Number DB02679 Description. Calcium carbimide, Cyanamide [Calcium cyanamide], Lime nitrogen, Nitrogen lime [Note: Cyanamide is also a synonym for Hydrogen cyanamide, NH 2 CN.] Acute toxicity - Oral, Category 4 Serious eye damage, Category 1 Specific target organ toxicity \u2013 single exposure, Category 3 Depending on the calcium carbide content, the cyanamide reacts with water (moisture from air or soil) to produce acetylene and hydrated calcium oxide or calcium hydroxide. 1-3, p. 152). cyanoiminocalcium. The citrated calcium salt is used in the treatment of alcoholism. [fertilizer] [Note: Commercial grades may contain calcium carbide.] Cyanamide in aqueous solution or in the form of its calcium salt is used as a fertilizer in agriculture. Other reasons for its loss of popularity were its dirty-black color, dusty appearance and irritating properties, as well as its inhibition of an alcohol-degrading enzyme which causes temporary accumulation of acetaldehyde in the body leading to dizziness, nausea, and alcohol flush reaction when alcohol is consumed around the time of bodily exposure. Less run off from soil. (5) Commercial grades of calcium cyanamide occur as grayish-black lumps of powder. 1.5 million tonnes were produced worldwide using both processes. Characterisitcs 1. 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. Calcium carbimide, sold as the citrate salt, is an alcohol-sensitizing agent. Pure Calcium Carbide is a colorless and odorless solid with the chemical formula CaC 2. Februar 1916. Calcium cyanamide is activated in the soil when it comes into contact with liquid water. Colorless, gray, or black crystals or powder. [3] In contact with water, it decomposes and liberates ammonia: It was used to produce sodium cyanide by fusing with sodium carbonate: Sodium cyanide is used in cyanide process in gold mining. From Calcium Cyanamide: Ammonia is obtained by the action of water vapor on calcium cyanamide. Nevertheless, both processes (the Rothe–Frank–Caro process and the Polzeniusz-Krauss process) played a role in the first half of the 20th century. Abs. Term contracts & credit cards/PayPal accepted. response to calcium cyanamide treatments. Characteristics. How does calcium cyanamide fertilizer work? Commercial Calcium Carbide, however, may present a relatively wide range of colours depending on the impurities present (usually calcium, magnesium, and other oxides). Calcium cyanamide; Cyanamide calcium salt An obsolete post-emergence herbicide and defoliant with some fungicidal … Free samples program. endstream endobj startxref Formula: CaCN2 Elements: Calcium, Carbon, Nitrogen; CAS Number: 156-62-7; RTECS Number: GS6000000; Synonyms/Related: Calcium carbimide; Calcium Cyanamide; Calcium cyanamide with more than 0.1 percent of calcium carbide; Lime nitrogen; Nitrogen lime. CYANAMIDE is the amide of cyanic acid. This chemical is used as fertilizer and is commercially known as nitrolime. Physical Properties The chemical formula for calcium cyanamide is CCaN 2, and its molecular weight is 80.11 g/mol. CaNCN. Franck, W. Burg, Zeitschrift für Elektrochemie und angewandte physikalische Chemie, Angewandte Chemie, Band 29, Ausgabe 16, Seite R97, 25. Its main constituent, calcium cyanamide, has no residual properties after it has demonstrated its effectiveness as an agricultural chemical (insecticidal, fungicidal, and sterilization), decomposing into its components in the soil, ensuring that it can be used safely.