|
 |
| Producer, Manufacturer,
Supplier of |
| Alizarin Red S |
|
|
 |
| GRR
Code : |
0278 |
|
| CAS No : |
130-22-3 |
| CI No : |
58005 |
| Molecular Formula
: |
C14H7NaO7S |
| Molecular Weight
: |
342.26 |
| Description
: |
Orange-brown powder ·Solubility in water at 20 ° C 20 g/l. In alcohol 1 g/l
APPLICATIONS: Analytical reagent: BP 2007 · Ph. Eur. 5.0 ·Adsortion indicator ·pH indicator: 3,7 – 5,2 yellow - red-purple ·Reagent for Al ; A. P. Musakin , Z. Anal. Chem. , 105 , 351 (1936) ; C. J. Barton , Anal. Chem. , 20 , 1068 (1948) ; C. A. Parker , A. P. Goddard , Anal. Chem. Acta , 4 , 517 (1950) ; W. Oelschläger , Z. Anal. Chem. , 154 , 321 (1957) ·Reagent for B ; B. A. Ripley-Duggan , Analyst , 78 , 185 (1953) ; G. W. Goward , V. R. Wiederkerhr , Anal. Chem. , 35 , 1542 (1963) ·Reagent for F- ; T. Kempf , Z. Anal. Chem. , 244 , 113 (1969) ; J. A. Hargreaves , G. S. Ingram , Analyst , 95 , 177 (1970) ·Spectrophotometric determination of Hf ; Z. Anal. Chem. , 261 , 42 (1972) ·Reagent for In and Ga |
| Website : |
|
| Synonyms : |
Alizarinsulphonic Acid Sodium Salt , Sodium Alizarinsulphonate , Mordant Red 3, C14H7NaO7S |
| Specifications
: |
| Specifications |
|
| Identity |
IR p/t. |
| l1 of max. ABS in NaOH 0,1 mol/l |
553-558 nm |
| l2 of max. ABS in NaOH 0,1 mol/l |
592-596 nm |
| T.L.C. |
p/t. |
MAXIMUM LIMIT OF IMPURITIES |
|
| pH transition interval: |
|
| yellow |
3,7 |
| red-purple |
5,2 |
| Insoluble matter in H2O |
p/t. |
| Loss on drying at 135°C |
5 % |
| Sensitivity as Al reagent |
p/t. | |
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