Sulphide Test Kits
|0-1 & 1-10 ppm||0.05 ppm||Methylene Blue||CHEMets||K-9510||R-9510|
|0-30 & 30-300 ppm||5 ppm||Methylene Blue||VACUettes||K-9510D||R-9510D|
|0-60 & 60-600 ppm||10 ppm||Methylene Blue||VACUettes||K-9510A||R-9510A|
|0-120 & 120-1200 ppm||20 ppm||Methylene Blue||VACUettes||K-9510B||R-9510B|
|0-1200 & 1200-12,000 ppm||200 ppm||Methylene Blue||VACUettes||K-9510C||R-9510C|
|Range||Method||Type||Kit Cat. No.|
|V-2000: 0-3.00 ppm / Spec: 0-1.00 ppm||Methylene Blue||Vacu-vials||K-9503|
|0-6.00 ppm||Methylene Blue||Vacu-vials||K-9523|
The CHEMetrics test kits for the determination of Sulphide (Sulfide) in aqueous solutions are based on patented Self-Filling Reagent Ampoule technology, and employ the Methylene Blue method. Premixed. Premeasured. Precise. Each kit contains 30 tests. Suitable for industrial effluent testing.
The Methylene Blue Method
CHEMetrics test kits measure total acid soluble sulphides and employ the methylene blue methodology. Sulphides react with dimethyl-p-phenylenediamine in the presence of ferric chloride to produce methylene blue. Results are expressed as ppm (mg/l) S.
USEPA Methods for Chemical Analysis of Water and Wastes, Method 376.2 (1983).
APHA Standard Methods, 21st ed., Method 4500-S2-D (2005).
Sulphides are naturally present in ground waters as a result of leaching from sulphur-containing mineral deposits. Surface waters do not usually contain high sulphide concentrations. Sulphides result from the decomposition of organic matter, from bacterial sulphate reduction under anaerobic conditions and from various chemical processes.