Xylenol orange tetrasodium salt Chemical Properties

Melting point:

195 °C (dec.)(lit.)

Flash point:

93.3°C

storage temp. 

room temp

solubility 

510g/l

form 

Solid

color 

Red

PH

8.1 (10g/l, H2O, 20℃)

Odor

Odorless

Water Solubility 

510 g/L (20 ºC)

Stability:

Stable, but may be moisture sensitive.

CAS DataBase Reference

3618-43-7(CAS DataBase Reference)

EPA Substance Registry System

Glycine, N,N'-[(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)-, tetrasodium salt (3618-43-7)

Safety Information

Hazard Codes 

Xi

Risk Statements 

23/24/25-36/38-36/37/38

Safety Statements 

24/25-45-36/37-26-22-36

WGK Germany 

3

TSCA 

Yes

HS Code 

29349990

MSDS

• Language:English Provider:3,3'-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonephthalein tetrasodium salt
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Xylenol orange tetrasodium salt Usage And Synthesis

Chemical Properties

red-brown to purple crystalline powder

Uses

Xylenol Orange tetrasodium salt is used as a photometric reagent and a metal indicator. It is a versatile indicator for EDTA titrations in acidic range. It is a common organic reagent used as an indicator for metal titrations.

General Description

It is an acid dye or a vital stain, that is used as a fluorescent marker of bone growth.

Purification Methods

It is generally contaminated with starting material (cresol red) and semi-xylenol orange. Purify it by ion-exchange chromatography using DEAE-cellulose, eluting with 0.1M NaCl solution, which will give the sodium salt [3618-43-7] . Cresol Red, semi-xylenol orange and iminodiacetic acid bands elute first. This procedure will give the sodium salt of the dye. To obtain the free acid, dissolve the salt in H2O and acidify it with AcOH. Filter it off, wash it with H2O and dry it first in air and then in a vacuum desiccator over P2O5 in the dark [Sato et al. Anal Chim Acta 94 317 1977]. [Beilstein 19 II 111, 19 III/IV 1135, 19/3 V 461.]

Xylenol orange tetrasodium salt(3618-43-7)Related Product Information

• Sodium chloride
• CHLOROPHOSPHONAZO III
• Chlorophyllin
• 2,6-Dimethylphenol
• Xylenol Orange sodium salt, 0.1% w/v aq. soln.,XYLENOL ORANGE SODIUM SALT,XYLENOL ORANGE, WATER SOLUBLE,XYLENOL ORANGE TETRASODIUM,XYLENOL ORANGE
• 2,4-Dimethylphenol
• Disodium edetate dihydrate
• Sodium edetate
• 3,5-Dimethylphenol
• Ethylenediaminetetraacetic acid tetrasodium salt trihydrate
• chloroxylenol
• Xylenol
• Xylitol
• Lidocaine
• XYLENOL ORANGE
• XYLENOL ORANGE,Xylenol Orange disodium salt,Xylenol Orange, water soluble indicator
• Semixylenol orange
• XYLENOL ORANGE