المواد معلومة التركيز

1-5 drops 0.1% soln. in 90% alc. yellow orange-brown
1 drop 0.1% aq. soln. yellow violet
1 drop 0.1% aq. soln. yellow orange-brown
1-2 drops 0.1% soln in 70% alc. colorless orange-brown
1 drop 0.1% aq. soln. blue violet-pink
1 drop 0.1% aq. soln. colorless orange-red