 |
|
 |
| Producer, Manufacturer,
Supplier of |
| Bromocresol Purple |
|
|
 |
| GRR
Code : |
0419 |
|
| CAS No : |
115-40-2 |
| CI No : |
|
| Molecular Formula
: |
C21H16Br2O5S |
| Molecular Weight
: |
540.24 |
| Description
: |
Purple powder · Solubility in water at 20 ° C 20 g/l . In alcohol 80 g/l · M. P.: 240 ° C dec. · pK: 6,3 ·
APPLICATIONS: Analytical reagent
|
| Website : |
|
| Synonyms : |
5,5-Dibromo-o-Cresolsulphonephthalein, C21H16Br2O5S |
| Specifications
: |
| Specifications |
|
| Identity |
IR p/t. |
| l1 of max. ABS at pH 5,2 |
427-433 nm |
| l2 of max. ABS at pH 6,8 |
588-590 nm |
| A 1%, 1cm, l1 max. (calc. a.d.s.) |
>400 |
| A 1%, 1cm, l2 max. (calc. a.d.s.) |
>950 |
| T.L.C |
p/t. |
MAXIMUM LIMIT OF IMPURITIES |
|
| pH transition interval: |
|
| greenish yellow |
5,2 |
| bluish purple |
6,8 |
| Insoluble matter in C2H5OH |
p/t. |
| Loss on drying at 110°C |
1 % |
| Residue on ignition (as SO4) |
0,5 % | |
|
|
| Packaging : |
| Weight Unit |
Weight |
Description |
Price |
|
|
|
|
| |
|
|
|
| GRR
Group© 2006. All rights reserved. |
|
