AMMONIUM. 101 



9. Iodide of ammonium, Az H 4 + I = 17-875. 



Iodide of ammonium and gold, (I -f- Az H 4 ) -f Au I 3 = 

 77-626. 



10. Fluoride of ammonium, Az H 4 -f Fl = 4-5. 



11. Seleniet of ammonium, Az H 4 + Se = 7-25. 



12. Sulphuret of ammonium, Az H 4 S = 4-25. 



13. Bisulphuret of ammonium, Az H 4 S 2 =, 6-25. 



14. Persulphuret of ammonium, Az H 4 S 5 12-25. 

 Sulphohydrate of ammonium, Az H 4 S + HS 6-375. 

 Bisulphocarburet of ammonium, Az H 4 S + CS 2 = 9. 



15. Oxide of ammonium, Az H 4 O = 3-25. 



16. Sulphate of ammonium, SO 3 -f Az H 4 O + Aq = 9-375. 



17. Bisulphate of ammonium, 2 (SO 3 ) + Az H 4 O = 13-25. 



18. Ammonium-sulphate of magnesia, (SO 3 -f Az H 4 O) -f 



(SO 3 + Mg O) + 7 Aq = 23-625. 



19. Ammoniacal alum, (SO 3 + Az H 4 O) + 3 (SO 3 + Al O) 



-f 24 Aq = 54. 



And so with the double ammoniacal salts described in the 

 Chemistry of Inorganic Bodies, (Vol. ii. p. 750.) Adding an 

 atom of water to convert ammonia into oxide of ammonium. 



1. Nitrate of ammonium, Az O 5 4 Az H 4 O = 10. 

 And so with the double ammoniacal nitrates. 



2. Chlorate of ammonium, Chi O 5 + Az H 4 O = 12-75. 



3. lodate of ammonium, IO 5 + Az H 4 O = 24. 



4. Carbonate of ammonium, CO 2 + Az H 4 O = 6. This salt 



exists only in solution. 

 And so with the double ammoniacal carbonates. 



5. Phosphate of ammonium, 2 (PO 2 *) + Az H 4 O + 2 (HO) 



+ Aq = 15-625, and 2 (PO 2 *) -f 2 (Az H 4 O) -f- H O 

 = 16-625. 



6. Soda-phosphate of ammonium, 2 (PO 2 *) -f 



CNa O ^ 

 -J Az H 4 O V 

 (HO j 



+ 8 Aq = 26-375. 

 And so with the other double ammoniacal phosphates. 



7. Chromate of ammonium, Chr O 3 -f Az H 4 O -j- Aq 



= 10-875. 



8. Permanganate of ammonium, Mn O 7 + Az H 4 O -f- Aq 



= 14-875. 



9. Tungstate of ammonium, Tu O 3 -f Az H 4 O + Aq 



= 19-875. 



