hydroxy naphthol blue
Modify Date: 2024-01-02 23:26:28
hydroxy naphthol blue structure
|
Common Name | hydroxy naphthol blue | ||
|---|---|---|---|---|
| CAS Number | 165660-27-5 | Molecular Weight | 598.491 | |
| Density | N/A | Boiling Point | N/A | |
| Molecular Formula | C20H12N2Na2O11S3 | Melting Point | N/A | |
| MSDS | USA | Flash Point | N/A | |
| Symbol |
GHS07 |
Signal Word | Warning | |
Use of hydroxy naphthol blueHydroxy naphthol blue disodium, an azo dye, is a metal indicator for calcium and a colorimetric reagent for alkaline earth metal ions ( λmax = 650 nm). In the pH range between 12 and 13, the solution of the indicator is reddish pink in the presence of calcium ion and to deep blue in the presence of disodium EDTA[1]. |
| Name | Hydroxy Naphthol Blue, disodium salt, pure |
|---|---|
| Synonym | More Synonyms |
| Description | Hydroxy naphthol blue disodium, an azo dye, is a metal indicator for calcium and a colorimetric reagent for alkaline earth metal ions ( λmax = 650 nm). In the pH range between 12 and 13, the solution of the indicator is reddish pink in the presence of calcium ion and to deep blue in the presence of disodium EDTA[1]. |
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| Related Catalog | |
| References |
| Molecular Formula | C20H12N2Na2O11S3 |
|---|---|
| Molecular Weight | 598.491 |
| Exact Mass | 597.939880 |
| PSA | 259.09000 |
| LogP | 6.11690 |
| Appearance of Characters | Small Powder | Small dark blue to black |
| Storage condition | Store at room temperature. |
| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H319 |
| Precautionary Statements | P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Phrases | 36/37/38 |
| Safety Phrases | 24/25-36-26 |
| RIDADR | NONH for all modes of transport |
| MFCD00004075 |
| Hydroxy Naphthol Blue |
| Disodium 3-hydroxy-4-[(E)-(2-hydroxy-6-sulfo-3-sulfonato-1-naphthyl)diazenyl]-1-naphthalenesulfonate |
| Hydroxynaphtholblue disodium salt |
| Hydroxy naphthol blue disodium salt |
| 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(E)-2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2) |
| disodium,3-hydroxy-4-[2-(2-oxo-4-sulfonatonaphthalen-1-ylidene)hydrazinyl]-7-sulfonaphthalene-2-sulfonate |