SPADNS AR

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SPADNS AR Specification

Form
Solid

Other Names
SPADNS Dye SPADNS Reagent

Purity
>99%

Smell
Odorless

Structural Formula
Complex azo compound with sulfonic acid groups attached to a naphthalene structure

Storage
Store in a cool dry place away from light and incompatible substances

Solubility
Soluble in water

HS Code
3204.19.00

Density
Gram per cubic centimeter(g/cm3)

Poisonous
No

Molecular Formula
C16H10N2O10S3

Ph Level
Approximately 4-6 (in aqueous solution)

Refractive Rate
for solid materials

Molecular Weight
452.44 g/mol

Boiling point
Not applicable; this is a solid compound

Shape
Powder or fine granules

Melting Point
Decomposes before melting

Classification
Chemical Reagent

Chemical Name
SPADNS (2-(4-sulfophenylazo)-18-dihydroxy-36-naphthalenedisulfonic acid)

CAS No
20762-98-5

EINECS No
244-129-9

Grade
AR (Analytical Reagent)

Standard
ACS Grade

Type
Dye/Reagent for chemical applications

Usage
Mainly used as a spectrophotometric reagent for fluoride ion determination in water analysis

Main Material
SPADNS compound

Application
Water quality analysis laboratory research spectrophotometry

About SPADNS AR

SPADNS AR is a fine granular Analytical Reagent grade chemical reagent primarily used in water quality analysis, laboratory research, and spectrophotometry. With a molecular formula of C16H10N2O10S3 and a molecular weight of 452.44 g/mol, it is an odorless compound soluble in water. This SPADNS compound, also known as SPADNS Dye or SPADNS Reagent, is widely recognized for its purity of over 99% and its application as a spectrophotometric reagent for fluoride ion determination. Stored in a cool, dry place, this chemical is classified under dye/reagent for chemical applications, falling under the HS Code 3204.19.00 and CAS No 20762-98-5.