CONGO RED INDICATOR PAPERS

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MOQ : 1 Kilograms

CONGO RED INDICATOR PAPERS Specification

Molecular Weight
696.66 g/mol (for Congo Red dye)

Density
Gram per cubic centimeter(g/cm3)

Ph Level
N/A (indicator range: pH 3.0 to pH 5.0)

Structural Formula
Specific to Congo Red dye applied on paper

Shelf Life
Up to 2 years when stored as recommended

Usage
Dip the paper in the solution for pH testing; observe color change

Purity
Dependent on Congo Red dye purity applied

Ingredients
Congo Red dye filter paper substrate

Shape
Rectangular or custom shapes (strips or sheets)

Storage
Store in a cool dry place away from direct sunlight and moisture

Grade
Laboratory Grade

Application
pH indicator in laboratories titrations and educational purposes

Poisonous
NO

EINECS No
N/A for paper; Congo Red EINECS No.: 209-358-4

Solubility
Not soluble in water (paper form; dye soluble in water)

CAS No
Not applicable for paper; Congo Red CAS No.: 573-58-0

Taste
Tasteless

Molecular Formula
C32H22N6Na2O6S2 (for Congo Red dye)

Physical Form
Sheets or strips of paper

Melting Point
Not applicable (indicator paper is a solid mixture)

Smell
Odorless

HS Code
38220090

Appearance
Thin paper strips usually reddish in color

Properties
Changes color from blue to red based on pH range

About CONGO RED INDICATOR PAPERS

Congo Red Indicator Papers are essential tools for pH testing in laboratories, titrations, and educational settings. These rectangular or custom-shaped sheets are odorless, tasteless, and non-poisonous, making them safe for handling. The paper strips are typically reddish in color and undergo a color change from blue to red within the pH range of 3.0 to 5.0. Stored in a cool, dry place, these laboratory-grade papers have a shelf life of up to 2 years. Comprising Congo Red dye on a filter paper substrate, these papers are not water-soluble and exhibit a molecular weight of 696.66 g/mol. Their precise molecular formula, C32H22N6Na2O6S2, ensures accurate pH testing results.