QUINHYDRONE 97% AR

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QUINHYDRONE 97% AR Specification

Structural Formula
Quinhydrone consists of 1:1 molar complex of hydroquinone (C6H4(OH)2) and quinone (C6H4O2)

Shape
Powder

Shelf Life
Minimum 2 years under recommended storage conditions

EINECS No
203-388-2

Taste
Unknown

Poisonous
YES

Purity
97%

Storage
Store in a cool dry well-ventilated area away from incompatible substances

Application
Used as an analytical reagent primarily in pH measurement

Density
1.3 Gram per cubic centimeter(g/cm3)

Usage
Used in laboratories for pH calibration and testing

Grade
Analytical Reagent (AR)

Melting Point
171-172°C

Ingredients
Quinhydrone (97%) and trace impurities

Refractive Rate
Not applicable (solid)

Physical Form
Crystalline powder

Molecular Weight
218.21 g/mol

Properties
Forms a green crystalline solid; exhibits redox behavior; used in pH electrodes

Appearance
Green crystalline powder

CAS No
106-34-3

Solubility
Slightly soluble in water soluble in polar solvents like ethanol and acetone

Molecular Formula
C12H10O4

Ph Level
Neutral to acidic (~5.5 in water)

Smell
Slightly phenolic odor

HS Code
2932.99

About QUINHYDRONE 97% AR

QUINHYDRONE 97% AR is a green crystalline powder composed mainly of Quinhydrone (97%) along with trace impurities. It has a slightly phenolic odor and is primarily used as an analytical reagent for pH measurement in laboratories. With a purity of 97%, it demonstrates redox behavior and is slightly soluble in water but soluble in polar solvents like ethanol and acetone. This Analytical Reagent grade substance forms a 1: 1 molar complex of hydroquinone and quinone, with a molecular formula of C12H10O4 and a molecular weight of 218.21 g/mol. Despite its neutral to acidic pH level (~5.5 in water), it is considered poisonous and should be stored in a cool, dry area away from incompatible substances for a shelf life of a minimum of 2 years.