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PHENAPHTHAZINE |
| Synonyms. Phenaphthazine; C.I. 14890; Nitrazine paper; Nitrazine Yellow; Nitrazol Yellow; Disodium 2-(2,4-dinitrophenylazo)-1-hydroxynaphthalene- 3,6-disulphonate; 3-((2,4-Dinitrophenyl)azo)-4- hydroxy- 2,7-naphthalenedisulfonic acid disodium salt; |
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| PRODUCT IDENTIFICATION | |
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CAS RN |
5423-07-4 (dihydrochloride), 1716-22-9 (parent) |
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EINECS RN |
226-549-8 |
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FORMULA |
C16H8N4Na2O11S2 |
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MOLE WEIGHT |
542.36 |
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H.S CODE |
2927.00.5000 |
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SMILES |
c12c(O)c(\N=N\c3c([N+]([O-])=O)cc([N+]([O-])=O)cc3)c(S(=O)(=O)[O-]) cc1cc(S(=O) (=O)[O-])cc2.[Na+].[Na+] |
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CLASSIFICATION |
Coloring agent, pH indicator, Obstetric |
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EXTRA NOTES |
Visible transition interval: pH 6.0(bright yellow) to pH 7.2(bright blue) |
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| PHYSICAL AND CHEMICAL PROPERTIES | |
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PHYSICAL STATE. |
dark green powder |
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MELTING POINT |
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BOILING POINT |
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DENSITY |
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SOLUBILITY IN WATER |
Soluble |
| SOLVENT SOLUBILITY |
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VAPOR DENSITY |
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log P(octanol-water) |
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VAPOR PRESSURE |
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AUTOIGNITION TEMP |
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| pK |
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REFRACTIVE INDEX |
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FLASH POINT |
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| STABILITY AND REACTIVITY | |
| STABILITY | Stable under normal conditions. |
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INCOMPATIBLE MATERIALS |
Strong oxidizing agents |
| POLYMERIZATION |
Has not been reported |
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NFPA RATINGS |
Health: 1, Flammability: 0, Reactivity: 0 |
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| EXTERNAL LINKS & GENERAL DESCRIPTION |
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USA.gov - Phenaphthazine Wikipedia Linking - Nitrazine Google Scholar Search - Phenaphthazine Drug Information Portal (U.S. National Library of Medicine) - Phenaphthazine PubChem Compound Summary - Phenaphthazine http://www.ncbi.nlm.nih.gov/ - Phenaphthazine Material Safety Data Sheet - Phenaphthazine EPA - Substance Registry Services - Phenaphthazine |
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| SALES SPECIFICATION | |
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APPEARANCE |
dark green powder |
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DYE CONTENT |
85% min |
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pH RANGE |
pH 6.0(bright yellow) to pH 7.2(bright blue) |
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| TRANSPORT & REGULATORY INFORMATION | |
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UN NO. |
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| HAZARD CLASS |
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| PACKING GROUP | |
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| SAFETY INFORMATION | |
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HAZARD OVERVIEW |
Not a dangerous substance or mixture according to GHS (Globally Harmonised System). Eyes: May cause eye irritation. Skin: May be harmful if absorbed through skin. May cause skin irritation. Inhalation: May be harmful if inhaled. May cause respiratory tract irritation. Ingestion: May be harmful if swallowed. |
| HAZARD CODES |
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RISK PHRASES |
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SAFETY PHRASES |
24/25 |
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| PACKING |
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Preserve in light-resistant and well-closed containers |
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