AMMONIA NITRATE WITH AMMONIA. 
369 
Silver chloride and barium chloride * slowly dissolve to a moderate extent. 
Lead chloride dissolves freely. The solution may be mixed with several times its 
volume of water before precipitation begins to take place. 
Calcium chloride and cupric chloride also dissolve freely, but the dissolution is at 
length attended with deposition of crystalline matter. The cupric solution is of the 
usual deep blue colour. 
Magnesium chloride , zinc chloride, and cuprous chloride dissolve to a moderate extent, 
any excess that may be present being converted into white, bulky, crystalline deposits, 
soluble in water. The cuprous deposit and solution rapidly turn blue on exposure to 
the air. 
Mercuric chloride dissolves sparingly. Water does not throw down any thing when 
added to the solution, white precipitate being soluble in ammonia nitrate (Brett). 
Mercurous chloride is decomposed into metallic mercury (a grey precipitate assuming 
the form of globules when washed and dried) and ammoniated mercuric salt, which 
dissolves. 
Nickel chloride (bright yellow) becomes a bulky lilac-coloured mass, with slight 
evolution of heat. The liquid remains colourless, and takes up no nickel compound, 
but much (ammonium) chloride. The lilac deposit is soluble in water, with a lilac- 
blue colour. 
Cobalt chloride is very slowly converted into a bulky red-brown mass, soluble in 
water with a brown colour. The liquid remains colourless, and takes up no cobalt 
compound, but some (ammonium) chloride. 
Manganese chloride becomes a bulky white mass. The liquid dissolves only a very little 
manganese compound, but much (ammonium) chloride. The white deposit dissolves 
in water, yielding a solution only slowly precipitated by ammonia hydrosulphide. 
Ferrous chloride (white scales or crystals) becomes a bulky white or nearly white 
mass. The liquid dissolves only a minute quantity of ferrous compound, and not much 
chloride. The white deposit dissolves in water, but very rapidly oxidizes and deposits 
ferric hydrate. 
Ferric chloride is converted, with energetic action, into a bulky whitish chocolate- 
coloured mass. The liquid remains colourless, and takes up only a trace of ferric 
compound, but plenty of chloride. The deposit is converted into ferric hydrate by 
water. 
Chromic chloride (violet) is only very slowly acted upon, being converted into a dull 
whitish-pink mass, which imparts to the liquid a cobalt-nitrate-red colour. The deposit 
is insoluble in water. The liquid may be mixed with water and acidified without 
experiencing any change of colour ; but when heated with hydrochloric acid it changes 
to a pale chrome-alum colour, and then yields chromic hydrate with ammonia. The 
liquid may also be made to yield chromic hydrate by nearly neutralizing it with dilute 
hydrochloric acid and then boiling it. 
* This and all substances tried were used in the anhydrous condition, except where otherwise stated. 
