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221368

Sigma-Aldrich

Sodium pyrophosphate decahydrate

ACS reagent, ≥99%

Synonym(s):

Sodium pyrophosphate tetrabasic decahydrate, Tetrasodium pyrophosphate

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100 G
€38.60
500 G
€74.90
1 KG
€152.00
2.5 KG
€203.00

About This Item

Linear Formula:
Na4P2O7 · 10H2O
CAS Number:
Molecular Weight:
446.06
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NB.24
grade:
ACS reagent
form:
crystals or chunks

€38.60


Please contact Customer Service for Availability

Request a Bulk Order

grade

ACS reagent

Assay

≥99%

form

crystals or chunks

impurities

≤0.001% N compounds
≤0.01% insolubles

pH

9.5-10.5 (25 °C, 5%)

anion traces

chloride (Cl-): ≤0.002%
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.001%
heavy metals (as Pb): ≤0.001%

SMILES string

O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O

InChI

1S/4Na.H4O7P2.10H2O/c;;;;1-8(2,3)7-9(4,5)6;;;;;;;;;;/h;;;;(H2,1,2,3)(H2,4,5,6);10*1H2/q4*+1;;;;;;;;;;;/p-4

InChI key

VZWGHDYJGOMEKT-UHFFFAOYSA-J

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Application

Sodium pyrophosphate decahydrate may be used to catalyze the nucleation of sodium acetate trihydrate, a potential latent heat storage material.[1]

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Studies on salt hydrate for latent heat storage. I. Crystal nucleation of sodium acetate trihydrate catalyzed by tetrasodium pyrophosphate decahydrate.
Wada T and Yamamoto R.
Bulletin of the Chemical Society of Japan, 55(11), 3603-3606 (1982)
The crystal structure of sodium pyrophosphate decahydrate, Na4P2O7. 10H2O.
MacArthur DM and Beevers CA.
Acta Crystallographica, 10(6), 428-432 (1957)
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Protocols

To measure alcohol dehydrogenase activity, this assay uses β-nicotinamide adenine dinucleotide phosphate and a continuous spectrophotometric rate determination at 340 nm.

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

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  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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