If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
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A propos de cet article
Quality Segment
grade
reagent grade
agency
reag. ISO, suitable for SM 5210
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
Application
- β-lactoglobulin stabilized nanemulsions--Formulation and process factors affecting droplet size and nanoemulsion stability : cette recherche explore les mécanismes de stabilisation de la β-lactoglobuline dans les nanoémulsions, avec des implications pour les sciences pharmaceutiques et alimentaires, et propose l'utilisation de substances telles que le phosphate de potassium monobasique pour assurer la stabilité et le contrôle du pH (Ali et al., 2016).
- Reverse phase liquid chromatographic determination of sulfathiazole residues in honey : l'étude, qui porte sur une méthode de détection du sulfathiazole dans le miel par chromatographie liquide de phase inverse, souligne l'importance des techniques analytiques qui pourraient impliquer des réactifs tels que le phosphate de potassium monobasique pour la préparation et l'analyse des échantillons (Barry and MacEachern, 1983).
Analysis Note
Dosage (alcalimétrie, matière sèche) : ≥ 99,5 %
pH (5 % eau) : 4,2 - 4,5
Chlorures (Cl) : ≤ 0,0005 %
Sulfate (SO₄) : ≤ 0,003 %
Azote total (N) : ≤ 0,001 %
Métaux lourds (exprimé en Pb) : ≤ 0,0010 %
As (arsenic) : ≤ 0,0002 %
Cu (cuivre) : ≤ 0,0003 %
Fe (fer) : ≤ 0,0010 %
Na (sodium) : ≤ 0,02 %
Pb (plomb) : ≤ 0,001 %
Substances réductrices : satisfait au test
Perte au séchage (110 °C) : ≤ 0,2 %
Perte au séchage (130 °C) : ≤ 0,2 %
Correspond à ISO
Legal Information
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Classe de stockage
13 - Non Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
1 answer-
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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