Nickel(II) acetate

Nickel ( II) acetate

• 373-02-4 (anhydrous)
• 6018-89-9 (tetrahydrate )

Greenish crystals with a weak characteristic odor

Fixed

1.768 g · cm -3

Decomposition

Risk

350 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Nickel is the nickel salt of acetic acid and belongs to the group of acetates.

Production and representation

Nickel acetate can be prepared by reaction of a nickel (II ) carbonate with acetic acid.

Properties

Nickel acetate tetrahydrate as usually occurs. The crystal water content was first determined in 1878 by H. Stallo. Nickel acetate tetrahydrate crystallizes in the monoclinic crystal system, space group P21 / c with lattice parameters a = 476.4 pm, b = 1177.1 pm, c = 842.5 pm and β = 93.6 °. In the unit cell contains two formula units.

Nickel acetate tetrahydrate begins at about 80 ° C to give its water of crystallization. On further heating results in a water-free basic nickel with the stoichiometric composition of 0.86 Ni ( CH3COO ) 2.0 14 Ni (OH ) 2 The decomposition starts at 250 ° C, formed as intermediates Nickelcarbid and nickel (II ) carbonate. The end products of the decomposition are nickel (II ) oxide, and elemental nickel.

Use

Nickel is used for pickling of textiles and coatings during anodizing.

Security

Nickel is classified as a carcinogen.