Eriochrome Black T

Base Information

• Chemical Name: Eriochrome Black T
• CAS No.: 1787-61-7
• Molecular Formula: C₂₀H₁₂N₃O₇S*Na
• Molecular Weight: 461.387
• Hs Code.: 32041900
• Mol file: 1787-61-7.mol

Synonyms:Chromogene Black ET (6CI);Acid Chrome Black ET;Acid Chrome Black Special;Acid Mordant Black T;Alizarine Chrome Black PT;DiamondBlack PT;Durochrome Black T;Eniacromo Black PA;Eriochrome Black TDW;Fast Chrome Black T;FenakromBlack ET;Kenachrome Black T;Magracrom Black A;

Chemical Property of Eriochrome Black T

Chemical Property:

• Appearance/Colour: black powder
• PKA: pK1:6.3;pK2:11.55 (25°C)
• Flash Point: 185°C
• PSA: 176.58000
• Density: 1.109 g/mL at 25 °C
• LogP: 6.23590
• Storage Temp.: Store at RT.
• Solubility.: 50g/l
• Water Solubility.: 50 g/L (20 ºC)

Purity/Quality:

98% ^*data from raw suppliers

NBC2 ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36-36/37/38-36/38
• Safety Statements: 39-26-37/39-24/25

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Uses: To dye wool from an acid bath reddish-black, which can be converted to blue-black by afterchroming. As indicator in the determination of the total calcium and magnesium content of water. Eriochrome black T is used as an indicator in analytical chemistry. It is also used in the detection of rare earth metals. It finds application in dyeing and printing of wool fabric, dyeing of silk and nylon as well as in leather dyeing. It can be used in the spectrophotometric determination of diphenhydramine hydrochloride in pharmaceutical preparations. As a complexometric indicator, it is useful in the determination of hardness of water. Eriochrome? Black T has been used to determine the concentration of Ca2+ using complexometric titration method.