Sodium dicyanamide

Structural formula
General
Surname	Sodium dicyanamide
Molecular formula	NaN (CN) 2
Brief description	light yellow solid
External identifiers / databases
EC number	217-703-5
ECHA InfoCard	100.016.094
PubChem	4350929
Wikidata	Q27280612
properties
Molar mass	89.03 g mol −1
Physical state	firmly
density	1.7 g cm −3
Melting point	> 340 ° C (trimerization)
safety instructions
H and P phrases	H: 302-317-318
	P: 280-301 + 312 + 330-305 + 351 + 338 + 310
Toxicological data	725–775 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Sodium dicyanamide is an inorganic chemical compound of sodium from the group of cyanamides .

Extraction and presentation

Sodium dicyanamide can be obtained by reacting cyanamide with cyan chloride and sodium hydroxide .

properties

Sodium dicyanamide is a light yellow solid. The compound occurs in two crystal structures . Below 33 ° C it is in a monoclinic crystal structure with the space group P 2 ₁ / n (space group no.14, position 2) , above it than in an orthorhombic crystal structure with the space group Pbnm (space group no.62 , position 3) in front. Template: room group / 14.2 Template: room group / 62.3

use

Sodium dicyanamide is used as an intermediate in the manufacture of other chemical compounds (for example cyanoguanidines and diguanides).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g data sheet Sodium dicyanamide, Lonza quality, ≥97.0% (w / w) (T) from Sigma-Aldrich , accessed on September 3, 2017 ( PDF ).

↑ ^a ^b ^c Barbara Jürgens, Elisabeth Irran, Julius Schneider, Wolfgang Schnick: Trimerization of NaC ₂ N ₃ to Na ₃ C ₆ N ₉ in the Solid: Ab Initio Crystal Structure Determination of Two Polymorphs of NaC ₂ N ₃ and of Na ₃ C ₆ N ₉ from X-ray Powder Diffractometry. In: Inorganic Chemistry . 39, 2000, p. 665, doi : 10.1021 / ic991044f .

↑ ^a ^b B. Pearson: Specialty Chemicals Innovations in industrial synthesis and applications . Springer Science & Business Media, 1991, ISBN 978-1-85166-646-1 , pp. 187 ( limited preview in Google Book search).

↑ Google patent search: Patent US6911559 - Method of producing sodium dicyanamide - Google patent search , accessed on September 3, 2017.

[Sigma-1] ↑ ^a ^b ^c ^d ^e ^f ^g data sheet Sodium dicyanamide, Lonza quality, ≥97.0% (w / w) (T) from Sigma-Aldrich , accessed on September 3, 2017 ( PDF ).

[DOI10.1021-2] Barbara Jürgens, Elisabeth Irran, Julius Schneider, Wolfgang Schnick: Trimerization of NaC ₂ N ₃ to Na ₃ C ₆ N ₉ in the Solid: Ab Initio Crystal Structure Determination of Two Polymorphs of NaC ₂ N ₃ and of Na ₃ C ₆ N ₉ from X-ray Powder Diffractometry. In: Inorganic Chemistry . 39, 2000, p. 665, doi : 10.1021 / ic991044f .

[B._Pearson-3] B. Pearson: Specialty Chemicals Innovations in industrial synthesis and applications . Springer Science & Business Media, 1991, ISBN 978-1-85166-646-1 , pp. 187 ( limited preview in Google Book search).