Category:
Other Packaging Materials
CAS NO:
6223-35-4
Standard:
In-house Standards,

Product Information |
Product name |
Sodium Azulene Sulfonate |
CAS No. |
6223-35-4 |
Molecular Formula |
C15H17NaO3S・1/2H2O C15H17NaO3S・H2O |
Molecular Weight |
309.36/318.36 |
Quality Standard |
98.5% up, Cosmetic Grade/Medicine Grade |
Appearance |
Blue crystal powder |
COA of Sodium Azulene Sulfonate |
Test Items |
Specification |
Test Results |
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Appearance |
It occurs as oxford blue crystalline or crystal powder, is odorless and tasteless. |
Conform |
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Solubility |
It is soluble in methanol, sparingly soluble in water and glacial acetic acid, slightly soluble in ethanol (95) and practically insoluble in anhydrous acetic acid, ether and hexane. |
Conform |
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pH |
6.0〜9.0 |
8.5 |
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Identification |
A |
Barium Chloride TS: a blue color precipitation develops. |
Conform |
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B |
Hydrochloric acid: a light yellow color develops or decolorized. |
Conform |
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C UV |
It show absorbance of maximum at 567~571nm. |
Conform |
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Absorbance |
19.85~20.65 |
20.35 |
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Purity |
Clarity and Color of Solution |
No precipitate on filter |
Conform |
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Heavy Metals |
NMT 20ppm |
Conform |
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Arsenic |
NMT 5ppm |
Conform |
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Guaiazulene |
Transmission show not less than 95.0 % at 605 nm. |
97.8% |
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Loss on Drying |
NMT 3.5% |
0.42% |
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Water |
2.5~7.0 % |
6.8% |
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Assay |
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98.5~101.5% |
(dried substance) |
99.9% |
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Conclusion |
All of the results conform to Enterprise standard. |
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Usage |