3147-14-6

Basic information

• Product Name: CALMAGITE
• Synonyms: 1-(1-HYDROXY-4-METHYL-2-PHENYLAZO)-2-NAPHTHOL-4-SULFONIC ACID;1-(1-HYDROXY-4-METHYL-2-PHENYLAZO)-2-NAPHTHOL-4-SULPHONIC ACID;TIMTEC-BB SBB008909;3-hydroxy-4-[(2-hydroxy-5-methylphenyl)azo]-1-naphthalenesulfonicaci;Caimagite;1-(1-Hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic acid metal;3-Hydroxy-4-(2-hydroxy-5-methylphenylazo)-1-naphthalenesulphonic acid;3-hydroxy-4-(6-hydroxy-m-tolylazo)naphthalene-1-sulphonic acid
• CAS NO: 3147-14-6
• Molecular Formula: C₁₇H₁₄N₂O₅S
• Molecular Weight: 358.37
• EINECS: 221-563-0
• Product Categories: Organics;Analytical Chemistry;Azo Compounds;Chelating Reagents;Naphthylazo Compounds;Azo
• Mol File: 3147-14-6.mol
• Article Data: 0

Chemical Properties

• Melting Point: 330 °C(lit.)
• Appearance: Purple/Powder
• Density: 1.485 g/cm³
• Refractive Index: 1.682
• Storage Temp.: Store at RT.
• Solubility: Solubility Soluble in water, ethanol
• PKA: 8.1(at 25℃)
• Water Solubility: Soluble in water.
• Stability: Stable. Incompatible with strong oxidizing agents.
• Merck: 14,1718
• BRN: 708596
• CAS DataBase Reference: CALMAGITE(CAS DataBase Reference)
• NIST Chemistry Reference: CALMAGITE(3147-14-6)
• EPA Substance Registry System: CALMAGITE(3147-14-6)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 3147-14-6(Hazardous Substances Data)

Usage

Chemical Properties

dark brown crystalline powder

Uses

Different sources of media describe the Uses of 3147-14-6 differently. You can refer to the following data:
1. As indicator in titration of Ca or Mg with EDTA.
2. Calmagite is widely used in analytical chemistry as an indicator in the titration of calcium or magnesium with ethylenediaminetetraacetic acid (EDTA). It is also useful in the determination of magnesium in biological materials.
3. Used for the determination of magnesium in biological materials.

Purification Methods

A crude dye is extracted with anhydrous diethyl ether and forms red crystals from Me2CO. It gives a red colour in H2O at pH 7—9 and a blue colour at pH 9—11 which turns red on addition of Ca2+ or Mg2+ ions. [Lindstrom & Diehl Anal Chem 32 1123 1960]. Complexes with Ca, Mg and Th.

InChI:InChI=1/C17H14N2O5S/c1-10-6-7-14(20)13(8-10)18-19-17-12-5-3-2-4-11(12)16(9-15(17)21)25(22,23)24/h2-9,20-21H,1H3,(H,22,23,24)/b19-18+