1101 
Potassium oxalate and bromine. 
| Amount of 
5 : Time of | bromine | Unchanged 7 : 
Quality of Light exposure added Brie Volume of solution 
| in grams 
gy | 
a) Sunlight 30’ Oee: | )40.00858 IN Pd Merel, 
C5 d 
| | oxalate and 25 c.c. 
Darkness | 30’ 0.15872 | 0.02831 bromine water. 
b) Diffusedlight} 29 | Do 0.02417 | 
| | | Do 
Darkness | 29 | Do | 0.02813 
Oxalic acid and bromine. 
a) Sunlight (Snel | 0.06177 | 0.00103 25 cc N head 
| ze Dee 
| | \{ and 10 cc. bromine 
Diffused light 11 _ 0.06177 0.03346 | water. 
b) Sunlight 35’ 0.12354 | 0.00102 | pee Mn 
| a wh. 10 C 
| and 20 cc. bromine 
Darkness Bb! 0.12354 0.05678 water. 
| 
c) Diffused light 60’ 0.12698 0.00485 | Boe N OM ed 
| | | C59 © 
| | and 20 c.c. bromine 
Darkness | 60’ | 0.12698 ‘0.05834 water. 
d) Diffused light | 95’ 0.15872 | 0.00785 |] 50 cc Nin ne 
| 19 © a) 
| | | and 25 cc. bromine 
Darkness ly 295 0.15872 0.06938 |! water. 
| 
Tartaric acid and bromine. 
; | ; 5 
a) Sunlight | 40 | 0.06527 0.01035 | : tartario. asso 
| | | and 10 cc. bromine 
Darkness | 40’ Do 0.05875 |) water. 
b) Sunlight NP SGOAM Ee D 0.00835 |} 
| i Do 
Darkness | 60’ Do 0.04875 \ 
€) Diffused light | 80 | Do | 0.02238 | 
| Do 
Darkness 80’ Do | 0.03975 
d) Diffused light 120’ Do | .0.01725 | 
| Do 
Darkness 120’ Do | 0.02987 
