How To Analyze Calcium Lignosulfonate

Analysis of the quality indicators: 1. Sulfonate sulfur content accurately Weigh 1.0g, was dissolved in 400 ml of water in a beaker. Slowly to send a stream of nitrogen through the surface of the liquid. Add 10 ml of nitric acid solution and shake it vigorously until the calm reaction. 70% perchloric acid 10ml, shake […]

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