Packs sizes (1)
Technical data
- Melting Point:
- 240 °C
- Solubility:
- water 20 g/l at 20 °C
alcohol 80 g/l
- Physical Description:
- solid
- Product Code:
- 121546
- Product Name:
- Bromocresol Purple (Reag. USP) for analysis
- Quality Name:
- for analysis
- Headline Comment:
- pH indicator 5,2 greenish yellow; 6,8 bluish purple
- Specifications:
- Identity: IR passes test
A 1% , 1 cm, λ max. 1 (calc. a.d.s.): >400
A 1% , 1 cm, λ max. 2 (calc. a.d.s.): >950
λ of max. ABS: 588 - 590 nm
λ of max. ABS: 427 - 433 nm
T.L.C.: passes test
Maximum limit of impurities
pH transition interval: greenish yellow: 5.2
pH transition interval: bluish purple: 6.8
Insoluble matter in C2H5OH: passes test
Loss on drying at 110°C: 1%
Residue on ignition (as SO4): 0.5 %
- WGK:
- 2
- Storage:
- Storage between +2 and +8°C .
- Master Name:
- Bromocresol Purple
- Synonyms Long Text:
- 5',5''-Dibromo-o-Cresolsulphonephthalein
- EINECS:
- 204-087-8
- CS:
- 2934 99 90 90
