Monopotassium Phosphate Monobasic Potassium Phosphate Monobasic Manufacturers |
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Potassium Phosphates Commercial grade
Potassium Phosphate USP BP IP FCC ACS Food Grade Manufacturers
MSDS of Monobasic Potassium Phosphate BP USP NF IP ACS FCC Food Grade Manufacturers
MSDS of Dibasic Potassium Phosphate IP BP USP NF ACS FCC Food Grade Manufacturers
MSDS of Tribasic Potassium Phosphate IP BP USP ACS FCC Food Grade Manufacturers
Potassium Phosphate
Monobasic
Mono Potassium Phosphate,
Monopotassium Phosphate, Monobasic Potassium Phosphate
Monopotassium Phosphate Specifications; Monobasic Potassium Phosphate Monobasic
| Appearance | Fine White Crystals |
| Purity on dry basis | 98% min Mono Potassium Phosphate |
| P2O5 Content | 51.5% min |
| pH of 1% solution | 3.9-5 |
| Heavy Metals | 20 ppm max |
| Arsenic | 3 ppm max |
| Moisture | 3% max |
| Insoluble | 0.1% max |
Specifications of Potassium Dihydrogen
Phosphate BP Ph Eur
Monopotassium Phosphate BP
KH2PO4 -- 136.1 -- 7778-77-0
Monobasic Potassium Phosphate BP
Potassium Phosphate Monobasic BP
DEFINITION
Potassium
dihydrogen phosphate contains
not less than 98.0 per cent and not more than the equivalent of 100.5
per cent of KH2PO4, calculated with reference to
the dried substance.
CHARACTERS
A white, crystalline powder or
colourless crystals, freely soluble in
water, practically insoluble in alcohol.
IDENTIFICATION
A. Solution S (see Tests)
is faintly acid.
B. Solution S gives reaction
(b) of phosphates.
C. 0.5 ml of solution S gives
reaction of potassium.
TESTS
Solution S
Dissolve 10.0 g in
carbon dioxide-free water prepared from distilled water and dilute to 100 ml with the same solvent.
Appearance of solution
Solution S is clear and
colourless.
pH
To 5 ml of solution S add 5 ml of
carbon dioxide-free water.
The pH of the solution is 4.2 to 4.5.
Reducing substances
To 5 ml of solution S add 5 ml of
dilute sulphuric acid and 0.25 ml of 0.02
M
potassium permanganate. Heat on a
water-bath for 5 min. The colour of
the permanganate is not completely discharged.
Chlorides
Dilute 2.5 ml of solution S to 15 ml with
water R. The
solution complies with the limit test for
chlorides (200 ppm).
Sulphates
To 5 ml of solution S add 0.5 ml of
hydrochloric acid and
dilute to 15 ml with distilled
water. The solution complies with the limit test for
sulphates (300 ppm).
Arsenic
0.5 g complies with limit test A for arsenic (2
ppm).
Iron
10 ml of solution S complies with the limit test for iron (10
ppm).
Sodium
If intended for use in the manufacture of
parenteral dosage forms, it complies with
the test for sodium. Not more than 0.1 per cent of Na,
determined by atomic emission spectrometry
Heavy metals
12 ml of solution S complies with limit test A for heavy metals (10
ppm).
Loss on drying
Not more than 2.0 per cent, determined on 1.000 g by drying in an
oven at 125C to 130C.
Monobasic Potassium Phosphate USP NF
Monopotassium Phosphate USP NF
Mono Potassium Phosphate USP NF
Potassium Phosphate Monobasic USP NF
KH2PO4 136.09
Phosphoric acid, monopotassium
salt.
Monopotassium phosphate [7778-77-0].
Monobasic Potassium Phosphate, dried at 105 for 4 hours, contains not less than 98.0 percent and not more than 100.5 percent of KH2PO4.
Identification—
A solution (1 in 20)
responds to the tests for Potassium 191 and for Phosphate.
Loss on drying— Dry it at 105 for 4 hours: it loses not more than
1.0% of its weight.
Insoluble substances— Dissolve 10 g in 100 mL of hot water, filter through a
tarred
filtering crucible, wash the insoluble residue with hot water, and dry
at 105 for 2 hours: the residue does not exceed 20 mg (0.2%).
Arsenic: 3 ppm.
Lead— not more than 5
ppm of
Pb).
Heavy metals— : the limit is
0.002%.
Limit of fluoride— The limit is 0.001%.
Potassium Phosphate Monobasic FCC
Potassium Biphosphate; Potassium
Dihydrogen Phosphate;\.
Monopotassium Phosphate
FCC
Monobasic Potassium Phosphate FCC
KH2PO4 Formula wt 136.09
INS: 340(i) CAS: [7778-77-0]
DESCRIPTION
Potassium Phosphate, Monobasic, occurs as colorless crystals or as a
white, granular or crystalline powder. It is stable in air. It is freely
soluble in water, but is insoluble in alcohol. The pH of a 1:100 aqueous
solution is between 4.2 and 4.7.
Function: Buffer;
sequestrant; yeast
food.
REQUIREMENTS
Identification: A 1:20 aqueous solution gives positive tests for
Potassium and for Phosphate.
Assay: Not less than 98.0% of KH2PO4 after drying.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 10 mg/kg.
Insoluble Substances: Not more than 0.2%.
Lead: Not more than 2 mg/kg.
Loss on Drying: Not more than 1%.
Monopotassium phosphate (also potassium dihydrogen phosphate, KDP, or monobasic potassium phosphate, MKP) -- KH2PO4 -- is a soluble salt which is used as a fertilizer, a food additive and a fungicide. In its crystalline state it is noted for its non-linear optical properties. It is a source of phosphorus and potassium. It is also a buffering agent.
It is one of the components of Gatorade (used as both an emulsifier and pH buffer) and is used as an additive in cigarettes.
Potassium Phosphate, Monobasic is a reagent with a very high buffering capacity. Widely used in molecular biology, biochemistry, and chromatography. Neutral potassium phosphate buffer solutions may be prepared with a mixture of the monobasic and dibasic forms to varying degrees, depending on the desired pH. Potassium Phosphate buffers are very useful in numerous applications. It has been used to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes; it was found that KP buffers offered improved pH stability as opposed to NaP buffers. Potassium Phosphate has also been used for the extraction of keratohyalin protein from bovine tissue.
ACS Specifications
American Chemical Society
Potassium Phosphate Monobasic ACS
Potassium Dihydrogen Phosphate
ACS
Monopotassium Phosphate ACS
Monobasic Potassium Phosphate ACS
KH2PO4
Formula Wt 136.09
CAS Number 7778-77-0
REQUIREMENTS
Assay: 99.0% KH2PO4
pH of a 5% solution: 4.1-4.5 at 25C
MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Loss on drying at 105C: 0.2%
Chloride (Cl): 0.001%
Nitrogen compounds (as N)
. 0.001%
Sulfate (SO4): 0.003%
Heavy metals (as Pb): 0.001%
Iron (Fe): 0.002%
Sodium (Na): 0.005%
Monobasic Potassium Phosphate Monobasic Monopotassium Phosphate BP USP NF FCC ACS Manufacturers
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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