The Dictionary Of Photography

A True Historic Record Of The Art & Practice Of Photography 100 Years Ago.

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Equivalence, Chemical
680 Zinc chloride .....
... (ZnCLJ.
119.0 Cobalt chloride
... (CoCL6H20).
85*25 Crystal cupric chloride
... (CuCL2H20)
119*1 Potassium bromide
... (KBr)~.
139*0 Sodium bromide ...
... (NaBr2H20).
103*0 Anhydrous sodium bromid
e ... (NaBr).
177*4 Strontium bromide
... (SrBr26H20).
98*0 Ammonium bromide
... (NH4Br).
112*5 Zinc bromide
... (ZnBr2).
172*0 Cadmium bromide
... (CdBr,4H20).
136*0 Anhydrous cadmium
... (CdBn,).
126*33 Cadmium and ammonium bromide (2NH4Br,2CdBrH20)
166* 1 Potassium iodide ...
... (KI).
1860. Sodium iodide (cryst.)
... (Nal2H20).
187*54 Lithium iodide
... (LiI3H20).
145*0 Ammonium iodide
. ... (NH4I).
1595 Zinc iodide
... (Znl2).
182*5 Cadmium iodide
. ... (Cdl2).
Calculations. With a view of simplifying the calculations involved in emul-sion making, Mr. William Ackland has worked out and published some useful tables, which will assist even those who are able to perform the calculations in the recognised style.
Mr. Ackland's Table. No. I.
283