5808-22-0

Basic information

• Product Name: CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE
• Synonyms: Chromotropic acid disodium salt dihydrate puriss. p.a., ACS reagent, for the detection of Ag, ClO3-, Cr, Hg, NO2-, NO32-, Ti, >=99.0% (T);Chromotropic acid disodium salt dihydrate technical grade;CHROMOTROPIC ACID DISODIUM SALT 2H2O;Sodium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate;2,7-Naphthalenedisulfonicacid, 4,5-dihydroxy-, sodium salt, hydrate (1:2:2);MORDANT BROWN 7;MORDANT BROWN 7 DIHYDRATE;LABOTEST-BB LT01147788
• CAS NO: 5808-22-0
• Molecular Formula: C10H10Na2O10S2
• Molecular Weight: 400.29
• EINECS: 204-972-9
• Product Categories: Intermediates of Dyes and Pigments;Miscellaneous Biochemicals;Analytical Chemistry;Bipyridyls, etc. (Chelating Reagents);Chelating Reagents;Building Blocks;Chemical Synthesis;Organic Building Blocks;Sulfonic/Sulfinic Acids;Sulfur Compounds
• Mol File: 5808-22-0.mol
• Article Data: 0

Chemical Properties

• Melting Point: >300 °C(lit.)
• Appearance: off-white/Powder
• Storage Temp.: Store below +30°C.
• Solubility: 170g/l
• Water Solubility: Soluble in water.
• Stability: Stable. Incompatible with strong oxidizers, strong acids, acid chlorides, acid anhydrides. Light sensitive.
• Merck: 14,2241
• BRN: 3647189
• CAS DataBase Reference: CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE(CAS DataBase Reference)
• NIST Chemistry Reference: CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE(5808-22-0)
• EPA Substance Registry System: CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE(5808-22-0)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-37/39
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 5808-22-0(Hazardous Substances Data)

Usage

Description

Chromotropic acid disodium salt dihydrate is a tan-colored sodium salt, which is a white or gray to tan powder. It is a chemical compound known for its various applications in different industries due to its unique properties.

Uses

1. Chromatography Industry:
Chromotropic acid disodium salt dihydrate is used as a visualization agent for the detection of trichothecenes on thin-layer chromatography (TLC) plates. Its application enhances the visibility and accuracy of the results, making it a valuable tool in this field.
2. Pharmaceutical Industry:
In the pharmaceutical industry, chromotropic acid disodium salt dihydrate serves as a chromogenic reagent for the quantification of dipyrone in various pharmaceutical preparations. This helps in ensuring the quality and efficacy of the medications, contributing to the overall safety and effectiveness of the products.
3. Chemical Production:
Chromotropic acid disodium salt dihydrate is also used as an intermediate in the production of dyes, pigments, chelating reagents, sulfonic, and sulfinic acids. Its role in these processes is crucial for the development of various chemicals and materials with diverse applications.

Purification Methods

Recrystallise it from H2O or H2O by adding EtOH. It complexes with Ag, ClO3-, Cr, Hg, NO2 , -NO3 and Ti. [Beilstein 11 H 72, 11 I 307, 11 II 174, 11 III 174, 11 IV 576.]

InChI:InChI=1/C10H8O8S2.2Na.2H2O/c11-8-3-6(19(13,14)15)1-5-2-7(20(16,17)18)4-9(12)10(5)8;;;;/h1-4,11-12H,(H,13,14,15)(H,16,17,18);;;2*1H2/q;2*+1;;/p-2