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Sulphide Test Kits

Visual Kits

Range MDL Method Type Kit Refill
0.0 - 1.0 & 1 - 10 ppm 0.05 ppm Methylene Blue CHEMets K-9510 R-9510
5 - 50 ppm 5 ppm Methylene Blue HR CHEMets K-9520D R-9510
25 - 250 ppm 25 ppm Methylene Blue HR CHEMets K-9520A R-9510
125 - 1,250 ppm 125 ppm Methylene Blue HR CHEMets K-9520B R-9510 + A-0171
1,000 - 10,000 ppm 1000 ppm Methylene Blue HR CHEMets K-9520C R-9510 + A-0171

Instrumental Kits

Range Method Type Kit
0 - 3.00 ppm (0 - 1.00 ppm Spectrophotometer) 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 employ the Methylene Blue Method, delivering sensitivity and accuracy quickly. Based on CHEMetrics patented Self-Filling Reagent Ampoule technology. Premixed. Premeasured. Precise. Each kit contains 30 tests. Visual and instrumental sulphide testing kit formats span low and high measurement ranges. CHEMets® and HR CHEMets® visual test kits use colour comparators for analysis while Vacu-vials® instrumental kits rely on CHEMetrics direct-readout photometers or spectrophotometers capable of accepting a 13-mm diameter round cell. Suitable for industrial effluent testing.

The Sulphide Vacu-vials test kit K-9503 can be used with a Hach DR900 Colorimeter in conjunction with the CHEMetrics DR900 Vacu-vials® Adapter, Cat. No. A-0215. No endorsement by Hach Company is implied or intended.

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.

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

Technical Data Sheet

Applications

Sulphides are naturally present in groundwaters as a result of leaching from sulphur-containing mineral deposits. Well water is groundwater from underground aquifers. Wells drilled in sandstone or near coal mines may contain elevated sulphide. Surface waters do not usually contain high sulphide concentrations. High levels of sulphides in surface waters generally result from the decomposition of organic matter, from bacterial sulphate reduction under anaerobic conditions and from various chemical processes.

What is Sulphide?

Sulphide is an inorganic anion of sulphur with the chemical formula S2- or a chemical compound with one of more sulphide ions. Sulphide salts are corrosive. Pyrite is the earth's most abundant sulphide mineral.