Nickel sulfamate

Structural formula
General
Surname	Nickel sulfamate
other names	Nickel bis (sulfamidate); Nickel (II) amido sulfate;
Molecular formula	Ni (SO 3 NH 2 ) 2
Brief description	blue, crystalline solid
External identifiers / databases
EC number	237-396-1
ECHA InfoCard	100,033,982
PubChem	83720
ChemSpider	75542
Wikidata	Q10373228
properties
Molar mass	250.85 g mol −1 (anhydrous) 322.93 g mol −1 (tetrahydrate)
Physical state	firmly
solubility	soluble in water
safety instructions
H and P phrases	H: 302-332-317-334-341-350i-360D-372-410
	P: 260-285-261-342 + 311-405-501
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Nickel sulfamate is a chemical compound . It is used for galvanic nickel plating . The deposited layer can be up to 2 mm thick and has a hardness of 150 to 300 HV .

Extraction

Nickel sulfamate can be produced by reacting nickel powder or nickel (II) carbonate with amidosulfonic acid at a low pH value.

{\ displaystyle \ mathrm {NiCO_ {3} +2 \ HSO_ {3} NH_ {2} \ longrightarrow Ni (SO_ {3} NH_ {2}) _ {2} + CO_ {2} + H_ {2} O} }

properties

Nickel sulfamate is a green solid that is soluble in water. Its solubility is so high that it cannot be recrystallized from a solution. The technical product is therefore offered as a concentrated solution.

use

Nickel sulfamate is used as a component of electrolyte solutions for nickel-plating surfaces; such a solution consists, for example, of the following components:

material	Molecular formula	concentration
Nickel sulfamate	Ni (SO ₃ NH ₂ ) ₂ · 4H ₂ O	500-650 g / l
Nickel (II) chloride hexahydrate	NiCl ₂ • 6H ₂ O	5-15 g / l
Boric acid	H ₃ BO ₃	30-45 g / l

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Entry on nickel bis (sulfamidate) in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .
↑ Entry on nickel bis (sulphamidate) in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ Data sheet from AHC Benelux
^ ^A ^b Joseph R. Davis: Nickel, Cobalt, and Their Alloys . ASM International, 2000, ISBN 978-0-87170-685-0 , pp. 112 ( limited preview in Google Book search).
↑ Patent US3620669 : Production of nickel sulfamate. ‌
^ Mordechay Schlesinger, Milan Paunovic: Modern Electroplating . John Wiley & Sons, 2011, ISBN 978-1-118-06314-9 , pp. 98 ( limited preview in Google Book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g Entry on nickel bis (sulfamidate) in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .

[CLP_100.033.982-2] Entry on nickel bis (sulphamidate) in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .

[3] Data sheet from AHC Benelux

[Joseph_R._Davis-4] A ^b Joseph R. Davis: Nickel, Cobalt, and Their Alloys . ASM International, 2000, ISBN 978-0-87170-685-0 , pp. 112 ( limited preview in Google Book search).

[5] Patent US3620669 : Production of nickel sulfamate. ‌

[6] Mordechay Schlesinger, Milan Paunovic: Modern Electroplating . John Wiley & Sons, 2011, ISBN 978-1-118-06314-9 , pp. 98 ( limited preview in Google Book search).