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1.04873
Potassium phosphate monobasic
for analysis EMSURE® ISO
Synonym(s):
Potassium phosphate monobasic, Potassium dihydrogen phosphate, mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic, prim.-Potassium phosphate
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About This Item
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Agency
reag. ISO
suitable for SM 5210
Quality Level
product line
EMSURE®
Assay
≥99.5% dry basis (alkalimetric)
99.5-100.5% (alkalimetric)
form
solid
potency
>4640 mg/kg LD50, skin (Rabbit)
technique(s)
UV/Vis spectroscopy: suitable
loss
≤0.2% loss on drying, 110 °C
≤0.2% loss on drying, 130 °C
pH
4.2-4.6 (20 °C, 20 g/L in H2O)
mp
252.6 °C (lit.)
solubility
208 g/L
density
2.338 g/mL at 25 °C (lit.)
bulk density
1200 kg/m3
anion traces
chloride (Cl-): ≤0.0005%
sulfate (SO42-): ≤0.003%
cation traces
As: ≤0.0002%
Cu: ≤0.0003%
Fe: ≤0.0010%
N: ≤0.001%
Na: ≤0.02%
Pb: ≤0.001%
heavy metals (as Pb): ≤0.0010%
storage temp.
2-30°C
SMILES string
[K+].OP(O)([O-])=O
InChI
1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
InChI key
GNSKLFRGEWLPPA-UHFFFAOYSA-M
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1 of 4
This Item | 04243 | 92214 | 57618 |
|---|---|---|---|
| form solid | form crystalline | form - | form solid |
| assay ≥99.5% dry basis (alkalimetric), 99.5-100.5% (alkalimetric) | assay 98-100.5% (calc. to the dried substance) | assay - | assay 99.5-101.0% (T) |
| solubility 208 g/L | solubility H2O: soluble 4.5 parts, alcohol: insoluble | solubility - | solubility H2O: 10%, clear, colorless |
| Quality Level 300 | Quality Level 200 | Quality Level 100, 300 | Quality Level - |
| anion traces chloride (Cl-): ≤0.0005%, sulfate (SO42-): ≤0.003% | anion traces chloride (Cl-): ≤10 mg/kg, fluoride (F-): ≤10 mg/kg, sulfate (SO42-): ≤200 mg/kg | anion traces - | anion traces - |
| pH 4.2-4.6 (20 °C, 20 g/L in H2O) | pH 4.2-4.5 (20 °C, 5%) | pH - | pH 4.1-4.5 |
Application
- β-lactoglobulin stabilized nanemulsions--Formulation and process factors affecting droplet size and nanoemulsion stability.: This research explores the stabilization mechanisms of β-lactoglobulin in nanemulsions, with implications for pharmaceutical and food sciences, potentially utilizing substances like potassium phosphate monobasic for stability and pH control (Ali et al., 2016).
- Reverse phase liquid chromatographic determination of sulfathiazole residues in honey.: Discusses a method for detecting sulfathiazole in honey using reverse-phase liquid chromatography, highlighting the importance of analytical techniques that could involve reagents like potassium phosphate monobasic for sample preparation and analysis (Barry and MacEachern, 1983).
Analysis Note
Assay (alkalimetric; dried substance): ≥ 99.5 %
pH-value (5 %; water): 4.2 - 4.5
Chloride (Cl): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.003 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0010 %
As (Arsenic): ≤ 0.0002 %
Cu (Copper): ≤ 0.0003 %
Fe (Iron): ≤ 0.0010 %
Na (Sodium): ≤ 0.02 %
Pb (Lead): ≤ 0.001 %
Reducing substances: passes test
Loss on drying (110 °C): ≤ 0.2 %
Loss on drying (130 °C): ≤ 0.2 %
Correspons to ISO
Legal Information
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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Is this product traceability to NIST or ISO 17034
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Potassium phosphate monobasic, product 1.04873, is for analysis EMSURE ISO. All EMSURE® products with the designation “ISO” are compliant with ISO 6353. Product 1.04873 is not NIST traceable.
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