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
PHR1330
Monobasic Potassium Phosphate
Pharmaceutical Secondary Standard; Certified Reference Material
Synonym(s):
Potassium phosphate monobasic, Potassium dihydrogen phosphate, prim.-Potassium phosphate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
5 g | Check Cart for Availability | CHF 182.00 |
About This Item
Quality Segment
grade
certified reference material, pharmaceutical secondary standard
agency
traceable to USP 1551139
API family
monobasic potassium phosphate
CofA
current certificate can be downloaded
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
mp
252.6 °C (lit.)
density
2.338 g/mL at 25 °C (lit.)
application(s)
pharmaceutical (small molecule)
format
neat
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
General description
Application
Analysis Note
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| description Pharmaceutical Secondary Standard; Certified Reference Material | description United States Pharmacopeia (USP) Reference Standard | description buffer substance, anhydrous, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.5-100.5% | description ACS reagent, ≥99.0% |
| technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) - | technique(s) - | technique(s) tissue culture: suitable |
| application(s) pharmaceutical (small molecule) | application(s) pharmaceutical (small molecule) | application(s) - | application(s) - |
| format neat | format neat | format - | format - |
| Quality Level 300 | Quality Level - | Quality Level - | Quality Level 200 |
| grade certified reference material, pharmaceutical secondary standard | grade pharmaceutical primary standard | grade ACS reagent, anhydrous, puriss. p.a. | grade ACS reagent |
| storage temp. 2-30°C | storage temp. - | storage temp. - | storage temp. - |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
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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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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