Alkalinity
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Methods
Visual Kits
Alkalinity (total)
Range: 10-100 ppm as CaCO
3
References: ASTM D 1067-02, Acidity or Alkalinity of
MDL: 10 ppm / Method: Acid Titrant with pH Indicator
Water, Test Method B. APHA Standard Methods, 20
th
Cat#
ed., pp. 2-27, Method 2320 B (1998). USEPA Methods
Alkalinity (total) Titrets Kit K-9810
for Chemical Analysis of Water and Wastes, Method
Increments:
310.1 (1983).
10, 11, 12, 13, 14, 15, 16, 18, 20, 25, 30, 35, 40, 50, 70, 100 ppm
Kit comes in a cardboard box and contains everything needed to perform
The alkalinity of water is a measurement of its 30 tests: thirty ampoules with valve assemblies, Activator Solution, titrettor,
buffering capacity. Alkalinity of natural waters is
25 mL sample cup, instructions, and MSDS.
typically a combination of bicarbonate, carbonate,
and hydroxide ions. Sewage and wastewaters usually
Range: 50-500 ppm as CaCO
3
MDL: 50 ppm / Method: Acid Titrant with pH Indicator
exhibit higher alkalinities due to the presence of
silicates and phosphates.
Cat#
Alkalinity (total) Titrets Kit K-9815
Alkalinity inhibits corrosion in boiler and cooling
Increments:
waters. It is also measured as a means of controlling
50, 55, 60, 65, 70, 75, 80, 90, 100, 125, 150, 175, 200, 250, 350, 500 ppm
water and wastewater treatment processes or the
Kit comes in a cardboard box and contains everything needed to perform
quality of various process waters.
30 tests: thirty ampoules with valve assemblies, Activator Solution, titrettor,
25 mL sample cup, instructions, and MSDS.
CHEMetrics’ total alkalinity tests determine total
or M alkalinity using a hydrochloric acid titrant and
a bromocresol green/methyl red indicator. The end
Range: 100-1000 ppm as CaCO
3
MDL: 100 ppm / Method: Acid Titrant with pH Indicator
point of the titration occurs at pH 4.5. Results are
Cat#
expressed as ppm (mg/L) CaCO
3
.
Alkalinity (total) Titrets Kit K-9820
Increments:
Alkalinity (hydrate)
100, 110, 120, 130, 140, 150, 160, 180, 200, 250, 300, 350, 400, 500, 700, 1000 ppm
Reference: Developed with Calgon Corporation. Kit comes in a cardboard box and contains everything needed to perform 30
tests: thirty ampoules with valve assemblies, Activator Solution, titrettor, 25 mL
Hydrate alkalinity is a component of total alkalinity. sample cup, instructions, and MSDS.
Boiler operators must maintain relatively high hydrate
alkalinity levels when phosphate cycle treatments are
Range: 100-1000 ppm as NaOH
used to ensure the formation of softer, more easily
MDL: 100 ppm / Method: Acid Titrant with pH Indicator
removable deposits. This specific test for hydrate
Cat#
alkalinity provides a more accurate value than the
Alkalinity (hydrate) Titrets Kit K-4710
calculation method.
Increments:
100, 110, 120, 130, 140, 150, 160, 180, 200, 250, 300, 350, 400, 500, 700, 1000 ppm
The hydrate alkalinity reagent has been specially
Kit comes in a cardboard box and contains everything needed to perform
formulated to inhibit interference from carbonate and 30 tests: thirty ampoules with valve assemblies, Indicator Solution, Neutralizer
Solution, titrettor, 25 mL sample cup, instructions, and MSDS.
bicarbonate alkalinity, as well as up to one-third of the
phosphate and silicate alkalinity.
For hydrate alkalinity, CHEMetrics developed a
Kit Components common to Alkalinity
titrimetric method that uses a hydrochloric acid titrant Description Cat#
with a phenolphthalein indicator and an inhibiting Sample Cup Pack, 25 mL (6 ea) A-0013
agent. The end point of the titration occurs at pH 8.3.
Titrettor Pack (1 ea) A-0053
Results are expressed as ppm (mg/L) NaOH.
Instructions are posted on our website.
If no shelf-life is listed for a product, then the shelf-life is at least 2 years.
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