Standard Practice for Determination of Total and Available Cyanide in Solid Waste and Soil after Alkaline Extraction

Importancia y uso:

5.1 Cyanide and hydrogen cyanide are highly toxic. Regulations have been established requiring the measurement of cyanide in soil and solid waste samples. This practice is also useful for performing material balances to account for the distribution of cyanides in cyanidation products from metallurgical processes.

5.2 This practice is applicable to the determination of available or total water soluble, or both, and water insoluble cyanides in soil and solid waste.

5.3 Water insoluble cyanide complexes, such as Prussian blue, are not completely recovered by distillation methods. This practice extracts all cyanides, including the water insoluble cyanides such as Prussian blue, and then the extract solution can be analyzed for cyanide with Test Methods D6888, D7284, or D7511.

Subcomité:

D19.06

Referida por:

D5049-23

Volúmen:

11.02

Número ICS:

13.030.99 (Other standards related to wastes)

Palabras clave:

available cyanide; cyanide; cyanide amenable to chlorination; environmental; flow injection analysis; free cyanide; soil; solid waste; total cyanide; weak acid dissociable cyanide;