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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
30435
di-Sodium hydrogen phosphate dihydrate
puriss. p.a., reag. Ph. Eur., 98.5-101.0% (calc. to the dried substance)
Synonym(s):
sec-Sodium phosphate, Disodium hydrogen phosphate dihydrate, Disodium phosphate, Sodium phosphate dibasic dihydrate
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About This Item
Recommended Products
Agency
USP/NF
reag. Ph. Eur.
Quality Level
grade
puriss. p.a.
Assay
98.5-101.0% (calc. to the dried substance)
form
crystals
impurities
reducing impurities, complies
≤0.0005% heavy metals (as Pb)
≤0.001% total nitrogen (N)
≤0.5% NaH2PO4 (calc. to dried subst.)
loss
19.5-21.0% loss on drying, 130 °C
pH
9.0-9.2 (20 °C, 5%)
anion traces
chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg
cation traces
As: ≤0.5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
suitability
in accordance for appearance of solution
SMILES string
O.O.[Na+].[Na+].OP([O-])([O-])=O
InChI
1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2
InChI key
KDQPSPMLNJTZAL-UHFFFAOYSA-L
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General description
Application
- In the synthesis of BiOCl/BiPO4 composites from bismuth nitrate pentahydrate and potassium chloride by the microwave-assisted hydrothermal method.
- To prepare sodium phosphate buffer solution.
- As a phosphorus source in the synthesis of Mg-doped hydroxyapatite nanoplates.
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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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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