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529568

Potassium phosphate monobasic

Potassium Phosphate, Monobasic, Molecular Biology Grade, CAS No. 7778-77-0. Chemical formula KH2PO4, molar mass 136.1.

Synonym(s):

Potassium phosphate monobasic, Potassium dihydrogen phosphate, prim.-Potassium phosphate, KH2PO4

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Size/SKUAvailabilityPrice
250 g

Estimated to ship TODAY

$74.40
1 kg

Estimated to ship TODAY

$173.00

About This Item

Linear Formula:
KH2PO4
CAS Number:
Molecular Weight:
136.09
UNSPSC Code:
12352302
NACRES:
NA.25
MDL number:
eCl@ss:
38070209

$74.40


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description

Merck USA index - 14, 7659

Quality Segment

assay

≥99% (titration)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

color

white

mp

252.6 °C (lit.)

solubility

water: soluble

density

2.338 g/mL at 25 °C (lit.)

absorption

≤0.01 at 260 nm, ≤0.01 at 280 nm

foreign activity

DNases, proteases, RNases, none detected

shipped in

ambient

storage temp.

10-30°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

Buffer having a pH of 4.4-4.7 (absorbance: ≤0.01 at 260 nm and 280 nm).

Legal Information

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

Disclaimer

Toxicity: Standard Handling (A)

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This Item
602209221460229
description

Potassium Phosphate, Monobasic, Molecular Biology Grade, CAS No. 7778-77-0. Chemical formula KH2PO4, molar mass 136.1.

description

buffer substance, anhydrous, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.5-100.5%

description

TraceCERT®, certified reference material, 31P-qNMR Standard, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

description

tested according to Ph. Eur., anhydrous

assay

≥99% (titration)

assay

99.5-100.5%

assay

-

assay

98-100.5% dry basis

Quality Level

100

Quality Level

100

Quality Level

100, 300

Quality Level

200

form

solid

form

crystalline

form

-

form

crystalline

storage temp.

10-30°C

storage temp.

-

storage temp.

-

storage temp.

-

solubility

water: soluble

solubility

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

solubility

-

solubility

water: 208 g/L at 20 °C

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.)


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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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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

      Helpful?

  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

      Helpful?

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