Potassium Bromide Commercial Pure & BP USP ACS Manufacturers, KBr |
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MSDS of Potassium Bromide
Potassium Bromide
BP USP IP Manufacturers Technical
Potassium Bromide
Technical & Pure Crystals
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades
Specifications of Commercial Pure Potassium Bromide
Assay: 99.0% KBr
pH of a 5% solution: 4.5.0-9 at 25C
Insoluble matter: 0.05%
Loss on drying: 0.5% max
Chloride: 0.5% max
Specifications of Potassium Bromide BP Ph Eur
DEFINITION
Content
98.0 per
cent to 100.5 per cent (dried substance).
CHARACTERS
Appearance
White or
almost white, crystalline powder or colourless crystals.
Solubility
Freely
soluble in water and in glycerol, slightly soluble in alcohol.
IDENTIFICATION
A. It gives
reaction of bromides.
B. Solution
S (see Tests) gives the reactions of potassium.
TESTS
Solution S
Dissolve
10.0 g in carbon dioxide-free water R prepared from distilled water R
and dilute to 100 ml with the same solvent.
Appearance of solution
Solution S
is clear and colourless.
Acidity
or alkalinity
To 10 ml of
solution S add 0.1 ml of bromothymol blue solution R1. Not more than 0.5
ml of 0.01 M hydrochloric acid or 0.01 M sodium hydroxide is
required to change the colour of the indicator.
Bromates
To 10 ml of solution S add 1 ml of
starch solution R, 0.1 ml of a 100 g/l solution of potassium iodide and
0.25 ml of 0.5 M sulphuric acid and allow to stand protected from light
for 5 min. No blue or violet colour develops.
Chlorides
Maximum 0.6
per cent.
Iodides
To 5 ml of
solution S add 0.15 ml of ferric chloride solution and 2 ml of methylene chloride.
Shake and
allow to separate. The lower layer is colourless.
Sulphates
Maximum 100
ppm.
Iron
Maximum 20
ppm.
Magnesium and alkaline-earth metals
Maximum 200
ppm, calculated as Ca.
Heavy
metals
Maximum 10
ppm.
Loss on
drying
Maximum 1.0 per cent, determined on 1.000 g by drying in an oven at 105C for 3h.
Potassium Bromide USP
KBr 119.0
Potassium Bromide contains not less than 98.0 percent and not more than 100.5 percent of KBr, calculated on the dried basis. It contains no added substances.
Appearance of solution: clear and colorless.
Test
solution— Dissolve 10.0 g in carbon dioxide-free water, and dilute with the
same solvent to 100 mL.
Identification—
A: A
solution containing 4.5 mg of potassium bromide responds to the test for Bromide.
B:
Responds to the test for Potassium.
Acidity
or alkalinity— To 10 mL of the solution prepared for the test for Appearance of solution,
add 0.1 mL of bromothymol blue TS: not more than 0.5
mL of 0.01 N hydrochloric acid or 0.01 N sodium hydroxide is required to change
the color of this solution.
Loss on
drying— Dry it at 100 to 105 for 3 hours: it loses not more than 1.0% of its
weight.
Bromates—
Starch–mercuric iodide solution— Triturate 1.0 g of soluble starch with 5 mL
of water and pour the mixture into 100 mL of boiling water, containing 10 mg of
mercuric iodide.
Procedure—
To 10 mL of the solution prepared for the test for Appearance
of solution add 1 mL of Starch–mercuric iodide solution, 0.1 mL of a
100 g per L solution of potassium iodide, and 0.25 mL of 0.5 M sulfuric acid.
Allow to stand protected from light for 5 minutes: no blue or violet color
develops.
Limit of
chlorine: not more than 0.6%.
Iodides—
To 5 mL of the solution prepared for the test for Appearance of solution
add 0.15 mL of a 10.5 g per 100 mL ferric chloride solution, and 2 mL of
dichloromethane. Shake, and allow to separate. The lower layer is colorless.
Sulfates—
A 2.0-g portion shows no more sulfate than corresponds to 0.2 mL
of 0.020 N sulfuric acid (0.01%).
Limit of
iron: not more than 20 ppm.
Magnesium and alkaline-earth metals— (0.02%, calculated as Ca).
Heavy
metals: not more than 10 ppm.
Potassium Bromide ACS
Reagent
Chemicals
ACS Specifications
KBr
Formula Wt 119.00
CAS Number 7758-02-3
REQUIREMENTS
Assay: 99.0%
KBr
pH of a 5% solution: 5.0-8.8 at 25C
MAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Bromate (BrO3): 0.001%
Iodate (IO3): 0.001%
Chloride (Cl): 0.2%
Iodide (I): 0.001%
Nitrogen compounds (as N) . 0.005%
Sulfate (SO4): 0.005%
Barium (Ba): 0.002%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm
Calcium (Ca): 0.002%
Magnesium (Mg): 0.001%
Sodium (Na): 0.02%
Potassium Bromide BP USP ACS Analytical Reagent manufacturers at:
Muby Chem Ltd.
Toll manufacturing & Warehouse at Houston & Midland, Texas, USA and India
USA, Canada, Mexico Customers may e-mail: usa@mubygroup.com
Call 1-844-682-9243
Europe Africa Asia India Mumbai e-mail: info@mubygroup.com
Call +91-22-23774610
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