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MilliporeSigma

P5379

Potassium phosphate monobasic

ReagentPlus®

Synonym(s):

Potassium dihydrogen phosphate, prim.-Potassium phosphate

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100 G

$36.80

500 G

$133.00

1 KG

$172.00

10 KG

$773.00

$36.80


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About This Item

Linear Formula:
KH2PO4
CAS Number:
Molecular Weight:
136.09
EC Number:
MDL number:
UNSPSC Code:
12161700
PubChem Substance ID:
NACRES:
NA.25

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Quality Level

product line

ReagentPlus®

assay

≥99.0%

form

powder or crystals

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

mp

252.6 °C (lit.)

solubility

water: 100 mg/mL, clear, colorless

density

2.338 g/mL at 25 °C (lit.)

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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Show Differences

1 of 4

This Item
602201.93605PX1565
assay

≥99.0%

assay

99.5-100.5%

assay

-

assay

≥99% (acidimetric)

Quality Level

200

Quality Level

100

Quality Level

-

Quality Level

200

product line

ReagentPlus®

product line

-

product line

EMPLURA®

product line

-

form

powder or crystals

form

crystalline

form

-

form

crystals

solubility

water: 100 mg/mL, clear, colorless

solubility

water: 0.5 g/10 mL, clear, colorless to light yellow

solubility

-

solubility

soluble 208 g/L

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

Potassium phosphate monobasic has been used:
  • in calibration curve generation in electrical conductivity measurement of plasma-activated tap water (PATW).[1]
  • as a component of dissection solution.[2]
  • as a constituent of phosphate buffered saline.[3]

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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