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CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE

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CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE Basic information

Product Name:
CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE
Synonyms:
  • disodium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate
  • CHROMOTROPIC ACID, DISODIUM SALT, REAGENT (ACS)CHROMOTROPIC ACID, DISODIUM SALT, REAGENT (ACS)CHROMOTROPIC ACID, DISODIUM SALT, REAGENT (ACS)
  • CHROMOTROPIC ACID 2SOD 2HYD
  • Chromotropic acid disodium salt dihydrate puriss. p.a., ACS reagent, for the detection of Ag, ClO3-, Cr, Hg, NO2-, NO32-, Ti, >=99.0% (T)
  • 4,5-DIHYDROXYNAPHTHALENE-2,7-DISULFONIC ACID, DISODIUM SALT DIHYDRATE, TEC
  • 4,5-DIHYDROXYNAPHTHALENE-2,7-DISULFONIC ACID, DISODIUM SALT DIHYDRATE, A.C.
  • 4,5-DIHYDROXYNAPHTHALENE-2,7-*DISULFONIC ACID DISOD
  • CHROMOTROPIC ACID DISODIUM SALT DIHYDRAT E, ACS
CAS:
5808-22-0
MF:
C10H10Na2O10S2
MW:
400.29
EINECS:
611-619-6
Product Categories:
  • Building Blocks
  • Chemical Synthesis
  • Organic Building Blocks
  • Sulfonic/Sulfinic Acids
  • Sulfur Compounds
  • Analytical Chemistry
  • Bipyridyls, etc. (Chelating Reagents)
  • Chelating Reagents
  • Intermediates of Dyes and Pigments
  • Miscellaneous Biochemicals
Mol File:
5808-22-0.mol
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CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE Chemical Properties

Melting point:
>300 °C(lit.)
storage temp. 
Store below +30°C.
solubility 
170g/l
Colour Index 
57030
form 
Powder
color 
off-white
PH
3.6 (10g/l, H2O, 20℃)
Water Solubility 
Soluble in water.
Merck 
14,2241
BRN 
3647189
Stability:
Stable. Incompatible with strong oxidizers, strong acids, acid chlorides, acid anhydrides. Light sensitive.
CAS DataBase Reference
5808-22-0(CAS DataBase Reference)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36-37/39
WGK Germany 
3
TSCA 
Yes
HS Code 
29089990

MSDS

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CHROMOTROPIC ACID DISODIUM SALT DIHYDRATE Usage And Synthesis

Chemical Properties

white or gray to tan powder

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.]

CHROMOTROPIC ACID DISODIUM SALT DIHYDRATESupplier

J & K SCIENTIFIC LTD.
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Alfa Aesar
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