Description
Brand : CDH
Packings : 25 Gram
Grade : Microscopy
PARAMETER LIMIT
- Description A Green to black /dark reddish brown powder.
- Solubility 0.1% Solution in water is clear and dark red to very dark red.
- Dye Content (Spectrophotometry; on dried substance)About 90.0%
- Absorption maxima (in 50% ethanol) 530 – 534 nm
- Absorption ratio (A max – 15 nm) / (A max + 15 nm) 1.10 – 1.32
- Absorptivity (A1% / 1 cm at max, in 50% ethanol) 1120 – 1450
- Suitability for microscopy To pass the test.
MAXIMUM LIMIT OF IMPURITY
– Loss on drying (at 110°C) 10.0%
