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Chromotropic Acid Disodium ...

Chromotropic Acid Disodium Salt ACS Grade  CAS: 5808-22-0 | M.F: (HO)2C10H4(SO3Na)2•2H2O | MW: 400.29, Buy now for reliable and Reproducible results from ChemieR Organic Reagent at Chemical World.

Chromotropic acid disodium salt ACS is greyish white to brownish white colored powder. Its chemical formula is C10H10Na2O10S2. It is also known as 4,5-Dihydroxy-2,7-naphthalene disulfonic acid sodium salt. It is useful because of the red color when chromotropic acid in 75% sulfuric acid reacts with formaldehyde. It is used in laboratory for many uses.

ChemieR offers a comprehensive range of ACS grade and ISO 9001:2015 certified products, including high-purity solvents, inorganic reagents, acids, bases, and organic reagents. Our high-quality materials ensure your laboratory achieves precise, reproducible results every time. Rely on ChemieR for trusted, premium-grade chemicals that meet the highest industry standards.

Application :

  • Chromotropic Acid Disodium Salt, ACS is used as a reagent in the determination of 2,4-Dichlorophenoxyacetic acid. 
  • It is also used for testing for the presence of formaldehyde.
  • It is useful as the highest quality chemical available for laboratory use. 

Key features :

  • Meets the toughest regulatory standards for quality and purity
  • Suitable for formaldehyde determination
  • Soluble in water

Properties

Quality Level
200
Vapor Density
-
Vapor Pressure
-
Assay
?98.0%
Form
powder
autoignition temp.
-
expl. lim.
-
technique(s)
UV/Vis spectroscopy: suitable
impurities
8-10% water
color
off-white
transmittance
-
refractive index
-
pH
-
bp
>300 °C (lit.)
mp
-
density
-
UV absorption
-
application(s)
-
SMILES string
O.O.[Na+].[Na+].Oc1cc(cc2cc(cc(O)c12)S([O-])(=O)=O)S([O-])(=O)=O
InChI
1S/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
InChI key
QUEAKWJKJBFNEG-UHFFFAOYSA-L
 

Safety Information

Pictograms
GHS07
Signal Word
Warning
Hazard Statements
H315 - H319 - H335
Precautionary Statements
P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
-
Flash Point(C)
-

Safety Data Sheets (SDS), Product Specification (PS) and Certificates of Analysis (COA) click Document Button