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
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 - 1,200 ppm	20 ppm	Methylene Blue	VACUettes	K-9510B	R-9510B
0 - 1,200 & 1,200 - 12,000 ppm	200 ppm	Methylene Blue	VACUettes	K-9510C	R-9510C

Instrumental Kits

Range	Method	Type	Kit Cat. No.
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

Note: Click on the ‘Kit Cat. No.’ to view the test instructions. Click on the ‘Range’ value for Vacu-vials to view accuracy chart.

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.

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

Applications

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.

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