ERIOCHROME BLACK T Indicator grade

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ERIOCHROME BLACK T Indicator grade Specification

HS Code
3204.12

Ingredients
Eriochrome Black T dye associated stabilizers.

Usage
Used as an indicator in analytical chemistry for detecting metal ions.

Molecular Weight
461.38 g/mol

Grade
Indicator Grade

Poisonous
NO

CAS No
1787-61-7

Storage
Store in a cool dry place away from light and moisture.

Molecular Formula
C20H12N3NaO7S

Properties
Synthetic azo dye with an affinity for divalent metal ions.

Solubility
Partially soluble in water; better solubility in alcohol

Shelf Life
2 years if stored under recommended conditions

Ph Level
5.5 - 7.5 when dissolved in water

Purity
Typically >98% for indicator applications

Melting Point
Not applicable (decomposes before melting)

Structural Formula
Available as a detailed diagram in chemical references.

Density
Gram per cubic centimeter(g/cm3)

Smell
Odorless

Application
Complexometric titrations Water hardness testing

Shape
Amorphous granular or powdered form

Appearance
Black or dark brown powder

EINECS No
217-250-3

Physical Form
Powder

About ERIOCHROME BLACK T Indicator grade

Eriochrome Black T Indicator Grade is a black or dark brown amorphous granular or powdered substance primarily used in complexometric titrations and water hardness testing. It serves as an indicator in analytical chemistry, detecting metal ions due to its synthetic azo dye properties with an affinity for divalent metal ions. With a purity of typically over 98%, it is partially soluble in water and more soluble in alcohol. This product has a shelf life of 2 years when stored under recommended conditions and a pH level ranging from 5.5 to 7.5 when dissolved in water. Eriochrome Black T is structurally represented by the molecular formula C20H12N3NaO7S, with a molecular weight of 461.38 g/mol.