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1.06529
Sodium polyphosphate
(Graham′s salt) EMPLURA®
Synonym(s):
Sodium polyphosphate, Graham′s salt, Sodium metaphosphate
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About This Item
Recommended Products
Quality Level
product line
EMPLURA®
form
solid
potency
>2000 mg/kg LD50, oral (Rat)
concentration
≥68% ( P2O5, acidimetric)
pH
5.7 (20 °C, 10 g/L in H2O)
mp
550 °C
solubility
1000 g/L
density
2.5 g/cm3 at 20 °C
bulk density
1000 kg/m3
anion traces
chloride (Cl-): ≤0.02%
cation traces
Fe: ≤0.01%
heavy metals (as Pb): ≤0.005%
storage temp.
2-30°C
SMILES string
[Na+].[P](=O)(=O)[O-]
InChI
1S/Na.HO3P/c;1-4(2)3/h;(H,1,2,3)/q+1;/p-1
InChI key
AQMNWCRSESPIJM-UHFFFAOYSA-M
Related Categories
Application
- Novel method for the preparation of controlled-release theophylline granules coated with a polyelectrolyte complex of sodium polyphosphate-chitosan.: This paper presents a novel approach to creating controlled-release theophylline granules using a coating made from a polyelectrolyte complex of sodium polyphosphate and chitosan. This method could significantly impact pharmaceutical formulations by improving drug release profiles and patient compliance (Kawashima et al., 1985).
Analysis Note
Identity: passes test
Chloride (Cl): ≤ 0.02 %
Heavy metals (as Pb): ≤ 0.005 %
Fe (Iron): ≤ 0.01 %
Legal Information
Storage Class
13 - Non Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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How can I determine the shelf life / expiration / retest date of this product?
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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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Bonjour, Connaissez-vous le nombre d'unité moyen (n) du Sodium Polyphosphate ? Merci, Cordialement
1 answer-
This product is commonly referred to as Graham′s salt. The literature suggests that typically the n is 6, to make it sodium hexametaphosphate. However, this is not included in the product testing nor has this been verified. The end user would have to verify this empirically.
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Is it polydisperse or mono disperse?
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This product is Graham's salt, in which typically n=6, to make it sodium hexametaphosphate, and in the form of a cyclic hexamer. This should make it a relatively monodisperse product. However, this is not included in the testing specifications, so it cannot be confirmed. This would need to be verified empirically.
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