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HomeProduct name listCALMAGITE

CALMAGITE

Synonym(s):1-(1-Hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic acid;3-Hydroxy-4-(2-hydroxy-5-methylphenylazo)naphthalene-1-sulfonic acid

  • CAS NO.:3147-14-6
  • Empirical Formula: C17H14N2O5S
  • Molecular Weight: 358.37
  • MDL number: MFCD00011656
  • EINECS: 221-563-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-01 18:09:03
CALMAGITE Structural

What is CALMAGITE?

Chemical properties

dark brown crystalline powder

The Uses of CALMAGITE

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.

The Uses of CALMAGITE

As indicator in titration of Ca or Mg with EDTA.

The Uses of CALMAGITE

Used for the determination of magnesium in biological materials.

What are the applications of Application

Calmagite is a complexometric indicator used in analytical chemistry

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.

Properties of CALMAGITE

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
Odor Phenolic odor
PH Range Red (7.1) to blue (9.1)
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
EPA Substance Registry System 1-Naphthalenesulfonic acid, 3-hydroxy-4-[(2-hydroxy-5-methylphenyl)azo]- (3147-14-6)

Safety information for CALMAGITE

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for CALMAGITE

InChIKey VBRNLOQCBCPPHL-VHEBQXMUSA-N

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