Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter.
Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.
OCR for page 38
38
Name: POTASSIUM PERMANGANATE
CAS No.: 7722 - 64 - 7
Chemical Formula: KMnO4
Descrintion:
NAS/CWTC O. 16-82
Formula Weight: 158 . O
A dark purple crystal with a blue metallic sheen, having
a sweetish, astringent taste and no odor. It has a
Volubility in water of 5.0 g/100 ml at 20°C and is
available at a commercial strength of 97-99% potassium
permanganate.
Use:
Used as an oxidant for removal of iron or manganese and
for treatment of taste and odor.
Purity Requirements:
The RMIC values are based on a maximum dosage of 10 mg of
potassium permanganate/liter of water and are to be
compared to impurity concentrations obtained by using
sample procedures described in this monograph. If the
actual dosage is other than 10 mg/liter, the user is
cautioned to consult Table 2 for appropriate RMIC values.
Impurity
Cadmium
Chromium
Mercury
Bulk Sample Collection:
RMIC mg Impurity/kg
Potassium Permanganate
100
500
20
Sample in accordance with Standard for Potassium Perman-
ganate, AWWA B603-77, American Water Works Association,
Denver, Colorado (1977).
OCR for page 39
39
Analytical Sample Preparation:
Weigh out 2.5 g of potassium permanganate. In a 150-ml
acid-washed beaker, dissolve the sample with 100 ml of
deionized distilled water. Under a hood, acidify the
solution with concentrated HC1 to a pH of less than 2.
Add hydroxylamine hydrochloride until the solution turns
clear. Gently heat the solution to reduce the volume
below 100 ml, making certain that it does not boil.
Quantitively transfer to a 100-ml acid-washed volumetric
flask and make to volume with deionized distilled water.
Process a reagent blank by the same procedure.
Sample Analyses:
The analyses are to be performed on the potassium
permanganate solution in accordance with:
Standard Methods for the Examination of Water and Waste-
water, 15th Edition, American Public Health Association,
Washington, D.C. (1981).
Cadmium
Chromium
Mercury
Section 304
Section 304
Section 303F
All products used for disinfection that contain this
compound must be registered as prescribed by Federal
Insecticide, Fungicide and Rodenticide Act.
Representative terms from entire chapter:
chromium mercury
