| Identification | More | [Name]
3,3'-DIMETHYLNAPHTHIDINE | [CAS]
13138-48-2 | [Synonyms]
3,3'-DIMETHYL-(1,1'-BINAPHTHALENE)-4,4'-DIAMINE
3,3'-DIMETHYLNAPHTHIDINE
3,3-DIMETHYLNAPHTHIDINE
4,4'-DIAMINO-3,3'-DIMETHYL-1,1'-BINAPHTHYL
3,3-Dimethylnaphthidine (for colorimetric detemination of Cl in water)
3 3'-DIMETHYLNAPHTHIDINE REDOX IND. &
3,3'-DIMETHYLNAPHTHIDINE INDICATOR FOR M ETAL TITRATION
1,1-Binaphthalene-4,4-diamine, 3,3-dimethyl-
4 4-DIAMINO-3 3-DIMETHYL-1,1-BINAPHTHYL 98%
3,3-DIMETHYLNAPHTHIDINE [FOR COLORIMETRIC DETERMINATION OF CL IN WATER] 97+%
3,3-DIMETHYLNAPHTHIDINE METAL (PM) INDICATOR
3 3-DIMETHYLNAPHTHIDINE 98%
3,3'-Dimethylnaphthidine [for Colorimetric Determination of Cl in Water] | [EINECS(EC#)]
236-069-0 | [Molecular Formula]
C22H20N2 | [MDL Number]
MFCD00042706 | [Molecular Weight]
312.41 | [MOL File]
13138-48-2.mol |
| Chemical Properties | Back Directory | [Melting point ]
232 °C | [Boiling point ]
479.3±40.0 °C(Predicted) | [density ]
1.201±0.06 g/cm3(Predicted) | [storage temp. ]
Store below +30°C. | [Water Solubility ]
Slightly soluble in water | [form ]
powder to crystal | [pka]
4.79±0.10(Predicted) | [color ]
White to Gray to Brown | [BRN ]
2152306 | [CAS DataBase Reference]
13138-48-2(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection . | [WGK Germany ]
3
| [HS Code ]
2921 59 90 |
| Questions And Answer | Back Directory | [Description]
3, 3-Dimethylnaphthidine is a polycyclic aromatic hydrocarbon, being one kind of dimethylnaphthidine isomers. It is a useful indicator for metal titration (for example, the titration of aluminum using EDTA method, determination of vanadium). It has also been used for the photometric determination of small amount of oxygen as well as chlorine in water.
| [Sources]
https://en.wikipedia.org/wiki/2,6-Dimethylnaphthalene
https://www.sigmaaldrich.com/catalog/product/aldrich/358932?lang=zh®ion=CN
http://www.titrations.info/EDTA-titration-aluminum
http://pubs.rsc.org/en/content/articlehtml/1971/an/an9719600591
http://pubs.rsc.org/en/content/articlehtml/1968/an/an9689300142
https://pubs.acs.org/doi/pdf/10.1021/ac60088a056
|
|
|