QUINHYDRONE 97% AR

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QUINHYDRONE 97% AR Specification

HS Code
2932.99

EINECS No
203-388-2

CAS No
106-34-3

Usage
Used in laboratories for pH calibration and testing

Ingredients
Quinhydrone (97%) and trace impurities

Taste
Unknown

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

Purity
97%

Refractive Rate
Not applicable (solid)

Density
1.3 Gram per cubic centimeter(g/cm3)

Shape
Powder

Physical Form
Crystalline powder

Application
Used as an analytical reagent primarily in pH measurement

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

Molecular Formula
C12H10O4

Poisonous
YES

Ph Level
Neutral to acidic (~5.5 in water)

Melting Point
171-172C

Molecular Weight
218.21 g/mol

Shelf Life
Minimum 2 years under recommended storage conditions

Appearance
Green crystalline powder

Smell
Slightly phenolic odor

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

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

Grade
Analytical Reagent (AR)

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.