Products

Sulfide

Visual Kits

Range

 MDL

Method

Kit Catalog No.

Refill Catalog No.

0-1 & 1-10 ppm

0.05 ppm

Methylene Blue

CMK9510

CMR9510

0-30 & 30-300 ppm

5 ppm

Methylene Blue

CMK9510D

CMR9510D

0-60 & 60-600 ppm

10 ppm

Methylene Blue

CMK9510A

CMR9510A

0-120 & 120-1200 ppm

20 ppm

Methylene Blue

CMK9510B

CMR9510B

0-1200 & 1200-12,000 ppm

200 ppm

Methylene Blue

CMK9510C

CMR9510C

  

Instrumental Kits

Range

Method

Kit Catalog No.

V-2000: 0.20-3.00 ppm / Spec: 0.10-1.00 ppm

Methylene Blue

CMK9503

0.60-6.00 ppm

Methylene Blue

CMK9523

 

Method

References: USEPA Methods for Chemical Analysis of Water and Wastes, Method 376.2 (1983). APHA Standard Methods, 21st ed., Method 4500-S2-D (2005).

Sulfides are naturally present in ground waters as a result of leaching from sulfur-containing mineral deposits. Surface waters do not usually contain high sulfide concentrations. Sulfides result from the decomposition of organic matter, from bacterial sulfate reduction under anaerobic conditions and from various chemical processes.

CHEMetrics test kits measure total acid soluble sulfides and employ the methylene blue methodology. Sulfides react with dimethyl-p-phenylenediamine in the presence of ferric chloride to produce methylene blue. Results are expressed as ppm (mg/L) S.
 


 

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