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RDD019

Sigma-Aldrich

Potassium phosphate tribasic

anhydrous, free-flowing, Redi-Dri, reagent grade, ≥98%

Synonym(s):

Tripotassium phosphate

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500 G
$78.60
1 KG
$108.00
2.5 KG
$177.12

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500 G
$78.60
1 KG
$108.00
2.5 KG
$177.12

About This Item

Linear Formula:
K3PO4
CAS Number:
Molecular Weight:
212.27
EC Number:
MDL number:
UNSPSC Code:
12161700
PubChem Substance ID:
NACRES:
NA.25

$78.60


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grade

anhydrous
reagent grade

Quality Level

product line

Redi-Dri

assay

≥98%

form

crystalline

quality

free-flowing

loss

≤5.0% loss on ignition

pH

11.9 (25 °C, 10 g/L)

solubility

water: 100 mg/mL, clear, colorless

density

2.564 g/mL at 25 °C (lit.)

SMILES string

[K].OP(O)(O)=O

InChI

1S/3K.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3

InChI key

LWIHDJKSTIGBAC-UHFFFAOYSA-K

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1 of 4

This Item
RDD020P5504P5629
grade

anhydrous, reagent grade

grade

anhydrous

grade

-

grade

reagent grade

assay

≥98%

assay

≥99.0% (titration)

assay

≥99.0%

assay

≥98%

product line

Redi-Dri

product line

ReagentPlus®, Redi-Dri

product line

ReagentPlus®

product line

-

Quality Level

100

Quality Level

100

Quality Level

200

Quality Level

200

form

crystalline

form

crystalline

form

powder or crystals

form

powder

pH

11.9 (25 °C, 10 g/L)

pH

-

pH

9.2-9.4 (25 °C, 50 g/L)

pH

11.9 (25 °C, 10 g/L)

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

pictograms

CorrosionExclamation mark

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Questions

1–2 of 2 Questions  
  1. 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?

  2. 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/449/386/product-dating-information-mk.pdf

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