ERIOCHROME BLACK T AR-ACS

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ERIOCHROME BLACK T AR-ACS Specification

Appearance
Dark violet or black powder

EINECS No
217-250-3

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

Molecular Formula
C20H12N3NaO7S

Properties
Stable under recommended conditions shows color change under different pH levels during titration

Molecular Weight
461.38 g/mol

Shelf Life
2 years under proper storage conditions

Physical Form
Powder

Poisonous
NO

Taste
Not applicable or tasteless

Purity
Approximately 95%

CAS No
1787-61-7

Structural Formula
C20H12N3NaO7S (see specific diagrams for full structural formula)

Grade
AR-ACS (Analytical Reagent - American Chemical Society standards)

Ph Level
6.4-7.8 (in solution)

HS Code
32050000

Application
Used as an indicator in complexometric titrations

Usage
Typically used to identify calcium magnesium and other metal ions in complexometric analysis.

Smell
Odorless

Melting Point
190-200°C (decomposes)

Density
Gram per cubic centimeter(g/cm3)

Shape
Amorphous powder

Solubility
Soluble in water and ethanol

Ingredients
Principal ingredient: Eriochrome Black T indicator dye

About ERIOCHROME BLACK T AR-ACS

Eriochrome Black T AR-ACS is a dark violet or black amorphous powder used as an indicator in complexometric titrations to identify calcium, magnesium, and other metal ions. With a purity of approximately 95%, this Analytical Reagent grade powder is soluble in water and ethanol, exhibiting stable properties under recommended conditions. Its molecular formula C20H12N3NaO7S and molecular weight of 461.38 g/mol make it ideal for precise titration procedures, where it shows distinct color changes at different pH levels. It has a shelf life of 2 years when stored correctly.