Bromine and potassium malonate. 
Quality of light 
Time of 
exposure 
Amount of 
bromine 
added in 
grams 
Amount of 
unchanged 
bromine 
Volume of solution 
a) Sunlight 
20' 
0.12550 
0.04475 . 
1 N 
1 50 c.c. -- potassium 
Darkness 
20' 
0.12550 
0.08532 
1 malonate and 20 c.c. 
) bromine water. 
b) Sunlight 
45' 
0.06275 
0.00684 
1 JV 
1 50 c.c. jQ potassium 
Darkness 
45' 
0.06275 
0.01385 
j malonate] and 10 c.c. 
’ bromine water. 
c) Diffused light 
25' 
0.12550 
0.05975 
i iV 
f 50 c.c. yq potassium 
Darkness 
25' 
0.12550 
0.08235 
( malonate and 20 c.c. 
) bromine water . 
d) Diffused light 
50' 
0.06275 
0.00925 
i TV 
1 50 cc. jQ potassium 
Darkness 
50' 
0.06275 
0.01285 
( malonate and 10 c.c, 
' bromine water. 
Malie acid and bromine. 
a) Sunlight 
40' 
0.06134 
0.01532 
1 iV 
1 50 c.c. y malie acid 
Darkness 
40' 
Do 
0.05672 
1 and 10 c.c. bromine 
) water. 
b) Sunlight 
60' 
Do 
0.01035 
Do 
Darkness 
60' 
Do 
0.04235 
) 
c) Diffused light 
80' 
Do 
0.02238 
j Do 
Darkness 
80' 
Do 
0.03225 
1 
d) Diffused light 
120' 
Do 
0.01785 
Do 
Darkness 
120' 
Do 
0.02435 
1 
Sodium malate and bromine. 
a) Sunlight 
25' 
0.06134 
0.01025 
1 JV 
1 50 c.c. Sodium malate 
Darkness 
25' 
0.06134 
0.05735 
i and 10 c.c. bromine 
1 water. 
b) Sunlight 
40' 
0.12268 
0.01832 
1 N 
1 50 c.c. — Sodium malate 
Darkness 
40' 
! 
0.12268 
0.09875 
1 and 20 c.c. bromine 
) water. 
c) Diffused light 
120' 
Do 
0.02675 
j Do 
Darkness 
120' 
Do i 
0.05324 
i 
d) Diffused light 
90' 
0.06134 ’ 
j 
0.01824 
1 N 
1 50 c.c. g Sodium malate 
Darkness i 
90' 
0.06134 
0.03725 
1 and 10 c.c. bromine 
) water. 
