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: 2024-11-19 23:02:33
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) |
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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product: Calmagite Indicator AR 3147-14-6 99%
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