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
S2429
Sodium phosphate dibasic heptahydrate
meets USP testing specifications
Synonym(s):
Disodium hydrogen phosphate heptahydrate, Disodium phosphate
About This Item
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meets USP testing specifications
Quality Level
vapor density
4.9 (vs air)
assay
98.0-100.5% dry basis
form
powder, crystals or chunks
pH
9.0-9.3 (25 °C, 50 g/L)
solubility
water: ~35.8 g/L at 20 °C
density
1.68 g/mL at 25 °C (lit.)
application(s)
pharmaceutical (small molecule)
SMILES string
O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O
InChI
1S/2Na.H3O4P.7H2O/c;;1-5(2,3)4;;;;;;;/h;;(H3,1,2,3,4);7*1H2/q2*+1;;;;;;;;/p-2
InChI key
PYLIXCKOHOHGKQ-UHFFFAOYSA-L
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This Item | 1.06574 | 1.47574 | S9390 |
|---|---|---|---|
| assay 98.0-100.5% dry basis | assay - | assay - | assay 98.0-102.0% |
| Quality Level 300 | Quality Level 500 | Quality Level 500 | Quality Level 200 |
| application(s) pharmaceutical (small molecule) | application(s) liquid formulation | application(s) liquid formulation | application(s) - |
| form powder, crystals or chunks | form solid | form granular | form powder |
| pH 9.0-9.3 (25 °C, 50 g/L) | pH 8.7-9.3 (25 °C, 50 g/L in H2O) | pH - | pH 8.7-9.3 (25 °C, 5% in solution) |
| solubility water: ~35.8 g/L at 20 °C | solubility 154 g/L | solubility - | solubility - |
Storage Class
13 - Non Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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