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
60220
Fosfato de potasio monobasic
buffer substance, anhydrous, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.5-100.5%
Sinónimos:
Dihidrógeno fosfato de potasio, prim.-Fosfato de potasio
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MXP 3,074.00
MXP 4,582.00
MXP 7,775.00
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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
SMILES string
[K+].OP(O)([O-])=O
grade
ACS reagent, anhydrous, puriss. p.a.
agency
reag. ISO, reag. Ph. Eur.
assay
99.5-100.5%
form
crystalline
impurities
≤0.001% total nitrogen (N)
loss
≤0.2% loss on drying, 105 °C
pH
4.2-4.5 (20 °C, 5%)
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
mp
252.6 °C (lit.)
solubility
water: 0.5 g/10 mL, clear, colorless to light yellow
density
2.338 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤5 mg/kg, sulfate (SO42-): ≤30 mg/kg
cation traces
As: ≤0.5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤15 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, heavy metals: ≤0.001% (by ICP)
Quality Level
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Este artículo | P0662 | 795488 | RDD037 |
|---|---|---|---|
| assay 99.5-100.5% | assay ≥99.0% | assay ≥99% | assay ≥99.0% |
| grade ACS reagent, puriss. p.a., anhydrous | grade ACS reagent | grade ACS reagent, anhydrous | grade - |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| form crystalline | form powder or crystals | form powder or crystals | form - |
| solubility water: 0.5 g/10 mL, clear, colorless to light yellow | solubility - | solubility - | solubility - |
| density 2.338 g/mL at 25 °C (lit.) | density 2.338 g/mL at 25 °C (lit.) | density 2.338 g/mL at 25 °C (lit.) | density 2.338 g/mL at 25 °C (lit.) |
Application
- to prepare the working luminol solution to study the prooxidant activity in the chemiluminescent system luminol–H2O2[1]
- in phosphate buffer saline (PBS) to culture embryonic stem cells (ESCs) and generate embryoid bodies[2]
- in PBS to prepare polydimethylsiloxane (PDMS) substrate[3]
General description
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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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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