CALMAGITE Chemical Properties

Melting point:

330 °C (lit.)

Density 

0.989

storage temp. 

Store at RT.

solubility 

Solubility Soluble in water, ethanol

pka

8.1(at 25℃)

form 

Powder

color 

Purple

PH Range

Red (7.1) to blue (9.1)

Odor

Phenolic odor

Water Solubility 

Soluble in water.

λmax

610nm

Merck 

14,1718

BRN 

708596

Stability:

Stable. Incompatible with strong oxidizing agents.

Major Application

Nanoparticles, cleaning microelectronic substrates, sensors, photographic materials, recording materials, water hardness measurement, indicator for calcium and magnesium, determination of vanadium, medical component, measuring magnesium in biological fluids, diagnosis of diseases caused by elemental imbalance, treatment of thrombocytopenia, Kurine analysis test strip

InChIKey

VBRNLOQCBCPPHL-VHEBQXMUSA-N

EPA Substance Registry System

1-Naphthalenesulfonic acid, 3-hydroxy-4-[(2-hydroxy-5-methylphenyl)azo]- (3147-14-6)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

TSCA 

Yes

HS Code 

29270000

MSDS

• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

CALMAGITE Usage And Synthesis

Chemical Properties

dark brown crystalline powder

Uses

Calmagite is widely used in analytical chemistry as an indicator in the titration of calcium or magnesium with ethylenediaminetetraacetic acid (EDTA). It is also useful in the determination of magnesium in biological materials.

Uses

Used for the determination of magnesium in biological materials.

Uses

As indicator in titration of Ca or Mg with EDTA.

Purification Methods

A crude dye is extracted with anhydrous diethyl ether and forms red crystals from Me2CO. It gives a red colour in H2O at pH 7—9 and a blue colour at pH 9—11 which turns red on addition of Ca2+ or Mg2+ ions. [Lindstrom & Diehl Anal Chem 32 1123 1960]. Complexes with Ca, Mg and Th.

CALMAGITE(3147-14-6)Related Product Information

• calcium magnesium phosphate(CMP)
• Sodium hydrosulfide
• Calcium oxide
• Starch
• ZINCON
• MAGNESIUM (CALMAGITE) KIT
• CALMAGITE TRIETHANOLAMMONIUM SALT
• CALMAGITE
• 1-Amino-2-naphthol-4-sulfonic acid
• CALMAGITE TRIETHANOLAMMONIUM,calmagite triethanolamine
• 1-Naphthalenesulfonic acid
• 2-PHENYLAZO-4-METHYLPHENOL
• Sudan I
• Naphthionic acid
• 2,2'-DIHYDROXYAZOBENZENE