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Potassium Humic Acid Analysis Method
publish:Bowei Agrochem Co.,Ltd  date:6/30/2009  Read:7984

Statement: leonardite materials.

1.      Technical demand

2.      Test method

2.1  The method:Capability method.

2.1.1        Method abstract.

2.1.2        Reagent.

2.1.2.1 Normal potassium dichromate solution.

2.1.2.2 Potassium dichromate solution.

2.1.2.3 Vitriol.

2.1.2.4 1,10-Phenanthroline monohydrate indicator.

2.1.2.5 Ferrous ammonium sulphate normal solution.

2.1.3 Process of analysis.

2.1.3.2 Oxidize.

2.1.3.3 Titration.

2.1.4 Analyse the result.

2.1.5 Allowed error.

 
 

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