Chloride
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Methods Visual Kits
Chloride is the most common inorganic anion found Range: 2-20 ppm
in water and wastewater. The Maximum Secondary
MDL: 2.0 ppm / Method: Mercuric Nitrate
Contaminant Level for drinking water for chloride is
Cat#
250 mg/L. Natural sources of salt are the ocean and
Titrets Kit, Shelf-life 6 months *K-2002
various salt deposits above and below ground.
Increments:
2.0, 2.2, 2.4, 2.6, 2.8, 3.0, 3.2, 3.6, 4.0, 5.0, 6.0, 7.0, 8.0, 10, 14, 20 ppm
Chloride is very corrosive to most metals in systems
Kit comes in a cardboard box and contains everything needed to perform
with elevated pressures and temperatures such as
30 tests: thirty ampoules with valve assemblies, Acidifier Solution, Normalizer
Solution, titrettor, 25 mL sample cup, instructions, and MSDS.
boilers and oil-drilling equipment.
Range: 20-200 ppm
The Mercuric Nitrate Method
MDL: 20 ppm / Method: Mercuric Nitrate
References: APHA Standard Methods, 20
th
ed., pp. 4-
Cat#
68, Method 4500-Cl¯ C (1998). ASTM D 512-04, Chloride
Titrets Kit *K-2020
Ion in Water, Test Method A. USEPA Methods for
Increments:
Chemical Analysis of Water and Wastes, Method 325.3
20, 22, 24, 26, 28, 30, 32, 36, 40, 50, 60, 70, 80, 100, 140, 200 ppm
(1983).
Kit comes in a cardboard box and contains everything needed to perform
30 tests: thirty ampoules with valve assemblies, Activator Solution, titrettor,
CHEMetrics employs a mercuric nitrate titrant in acid
25 mL sample cup, instructions, and MSDS.
solution with diphenylcarbazone as the end point
indicator. Results are expressed as ppm (mg/L) Cl¯.
Range: 50-500 ppm
MDL: 50 ppm / Method: Mercuric Nitrate
The Ferric Thiocyanate Method
Cat#
Titrets Kit *K-2050
Reference: APHA Standard Methods, 20
th
ed., pp. 4-
Increments:
70, 4500-Cl
-
E (1998). D. Zall, D. Fisher, M. Garner, 50, 55, 60, 65, 70, 75, 80, 90, 100, 125, 150, 175, 200, 250, 350, 500 ppm
“Photometric Determination of Chlorides in Water,”
Kit comes in a cardboard box and contains everything needed to perform
Analytical Chemistry, Vol 28, No. 11, pp. 1665-1668,
30 tests: thirty ampoules with valve assemblies, Activator Solution, titrettor,
25 mL sample cup, instructions, and MSDS.
November 1956. J. O’Brien, “Automatic Analysis of
Chlorides in Sewage,” Wastes Engineering, pp. 670- *Contains mercury. Dispose according to local, state or federal laws.
672, December 1962.
The Chloride Vacu-vials
®
test employs the ferric
thiocyanate chemistry. Chloride reacts with mercuric
thiocyanate to liberate thiocyanate ion. Ferric ion
reacts with thiocyanate ion to produce an orange-
brown thiocyanate complex in proportion to the
chloride concentration. Results are expressed as ppm
(mg/L) Cl¯.
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