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| Producer, Manufacturer,
Supplier of |
| Alizarin |
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| GRR
Code : |
0276 |
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| CAS No : |
72-48-0 |
| CI No : |
58000 |
| Molecular Formula
: |
C14H8O4 |
| Molecular Weight
: |
240.22 |
| Description
: |
Orange powder ·Solubility in water at 20 ºC 0,4 g/l ·In alcohol 2 g/l ·M. P.: 279-289 ºC ·
APPLICATIONS: pH Indicator range : 5,5 - 6,8 yellow-red violet · 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 In ; A. S. Komarowsky
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| Website : |
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| Synonyms : |
1,2-Dihydroxyanthraquinone, Mordant Red 11, C.I. 58000, C14H8O4 |
| Specifications
: |
| Specifications |
 |
| Identity |
IR p/t. |
| l1 of max. ABS in NaOH 0,1 mol/l |
564-568 nm |
| l2 of max. ABS in NaOH 0,1 mol/l |
605-609 nm |
| A 1%, 1cm, l1 max |
>625 |
| A 1%, 1cm, l2 max |
>525 |
| T.L.C |
p/t. |
MAXIMUM LIMIT OF IMPURITIES |
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| pH transition interval: |
|
| yellow |
5,5 |
| red-violet |
6,8 |
| Insoluble matter in CH3OH |
p/t. |
| Loss on drying at 135°C |
5 % |
| Sensitivity as Al reagent |
p/t. |
HAZARDOUS: RTECS: CB 6580000 |
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