calmagite cas 3147-14-6

purity: 99%
Appearance: White powder
Packing: 10g/bottle, 1kg/bottle
Sample: Available

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Table of Contents

Calmagite CAS 3147-14-6: Product Overview

Calmagite (CAS 3147-14-6) is a metalochromic indicator widely used in complexometric titrations for calcium and magnesium determination. Key parameters:

Parameter Details
Chemical Formula C17H14N2O5S
Molecular Weight 358.37 g/mol
Appearance Dark purple crystalline powder
Solubility 0.5% in water (25°C), soluble in ethanol
pH Range 8.0-13.0

Comparative Analysis with Similar Indicators

Feature Calmagite Eriochrome Black T
Sensitivity to Mg2+ 0.1 ppm 0.5 ppm
Stability in Alkaline Solutions ≥24 hours ≤8 hours
Color Transition Red → Blue Wine Red → Pure Blue
Interference Resistance High (Fe3+, Al3+) Moderate

Industrial & Scientific Applications

1. Water Hardness Analysis

EPA-approved method for municipal water treatment plants to measure Ca2+/Mg2+ concentrations with ±0.5% accuracy.

2. Pharmaceutical Quality Control

Used in USP compliance testing for mineral supplements and antacid formulations.

3. Food Industry

Determination of calcium content in dairy products (AOAC Method 935.42).

4. Research Applications

Essential in metalloprotein studies and nanomaterial synthesis quality control.

Optimal Usage Protocol

Solution Preparation

  1. Dissolve 0.2g Calmagite in 100ml ethanol (ACS grade)
  2. Filter through 0.45μm membrane
  3. Store in amber glass at 4°C (6-month stability)

Titration Procedure

  1. Adjust sample pH to 10.0 with NH3/NH4Cl buffer
  2. Add 2-3 drops indicator
  3. Titrate with 0.01M EDTA until color shifts from red to blue

Client Success Stories

Case 1: Municipal Water Plant (Shanghai, China)

Challenge: Inconsistent hardness readings with previous indicators
Solution: Implemented Calmagite-based EDTA titration
Results: 98% measurement consistency across 12-month monitoring

Case 2: PharmaLab Inc. (Munich, Germany)

Challenge: FDA audit failures for calcium carbonate QC
Solution: Calmagite validation per USP ⟨241⟩
Results: Zero non-conformances in 2023 inspections

Request Technical Specifications

Contact our analytical experts:
Email: info@vivalr.com
Tel: (86) 15866781826

⇨ Download Free EDTA Titration Handbook (PDF)
⇨ Request Customized Validation Protocol

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