Talk:Nickel(II) chloride

Safety and Precautions
I would really like to see a section in this article regarding safety and precautions for handling this compound. Bfesser 17:51, 19 February 2007 (UTC)

Nickel chloride is yellow?
In the picture it looks green, and I have always thought it was green. —Preceding unsigned comment added by 74.37.102.111 (talk) 02:23, 13 September 2007 (UTC)
 * Well the anhydrous (water-free) nickel chloride is yellow, but the more commonly encountered material is a green hydrate. And the photo shows the hydrate.  I rewrote the opening paragraph in response to your comment.--Smokefoot 02:46, 13 September 2007 (UTC)

Nickel chloride hydrate can be dehydrated by heating
Heating nickel chloride hexahydrate at 240 °C in a standard oven wil give anhydrous nickel chloride. DrW PhD. (talk) 13:51, 27 February 2009 (UTC)

I thought that it tended to lose HCl and form a mixed oxide/chloride? 81.223.140.162 (talk) 07:12, 23 June 2010 (UTC)

Production of NiCl4 (2-) ion
When a nickel (U.S. coin) is dissolved in hydrochloric acid, it forms a yellow solution similar to a iron III chloride solution. At first I thought that it was a iron III chloride impurity in the nickel, but nickels don't contain iron. After reading this page, I found out that the color was the result of the NiCl4 (2-) ion. —Preceding unsigned comment added by 98.221.179.18 (talk) 22:51, 6 March 2010 (UTC)

Picture is the hydrate
Right under the title of the page, the main picture is not of Nickel Chloride, but rather nickel chloride hexahydrate. I think that this is confusing, as when I first went on the page, I thought that nickel chloride was a green salt rather than the yellow liquid that it actually is. Am I correct? — Preceding unsigned comment added by 216.96.140.201 (talk) 18:12, 7 November 2011 (UTC)
 * Thanks for mentioning that! I've added a caption underneath indicating it's the hexahydrate. Walkerma (talk) 21:56, 7 November 2011 (UTC)

Problem with the test tube illustration
This image here

http://upload.wikimedia.org/wikipedia/commons/3/30/Tetrachlorocobaltate_aqueous_ion.jpg

is a cropped section of the illustration on the nickel page:

http://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Color_of_various_Ni%28II%29_complexes_in_aqueous_solution.jpg/400px-Color_of_various_Ni%28II%29_complexes_in_aqueous_solution.jpg

The same source, LHcheM, uploaded both images, and labeled one as containing nickel and one as containing cobalt. Which is it? One of the articles must be wrong.

2601:A:5200:771:80E6:3978:AF13:CA29 (talk) 18:55, 27 July 2014 (UTC)