The maximum allowable moisture content for this product is 0.2% when heated to 105 °C. While not specifically listed as 'Anhydrous', this material is essentially moisture-free. Please see the link below to review a sample or lot specific Certificate of Analysis:
https://www.sigmaaldrich.com/product/sigald/s9763#product-documentation
S9763
Sodium phosphate dibasic
ACS reagent, ≥99.0%
Synonym(s):
sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate
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100 G
$78.20
500 G
$111.00
1 KG
$198.00
2.5 KG
$392.00
5 KG
$488.80
12 KG
$794.00
$78.20
In StockDetails
This SKU is also available as ACS grade in our Exclusive Redi-Dri™ free-flowing product line.
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100 G
$78.20
500 G
$111.00
1 KG
$198.00
2.5 KG
$392.00
5 KG
$488.80
12 KG
$794.00
About This Item
Linear Formula:
Na2HPO4
CAS Number:
Molecular Weight:
141.96
EC Number:
MDL number:
UNSPSC Code:
12352302
eCl@ss:
38070211
PubChem Substance ID:
NACRES:
NA.21
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$78.20
In StockDetails
This SKU is also available as ACS grade in our Exclusive Redi-Dri™ free-flowing product line.
New
Shipping Frequency
grade
ACS reagent
Quality Level
agency
suitable for SM 5210
assay
≥99.0%
form
powder
impurities
≤0.002% Chloride (Cl)
≤0.01% Insoluble matter
loss
≤0.2% loss on drying, 105°C
pH
8.7-9.3 (25 °C, 5% in solution)
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
solubility
water: 5% at 25 °C, clear
anion traces
sulfate (SO42-): ≤0.005%
cation traces
Fe: ≤0.002%
heavy metals: ≤0.001% (by ICP-OES)
SMILES string
[Na+].[Na+].[H]OP([O-])([O-])=O
InChI
1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
InChI key
BNIILDVGGAEEIG-UHFFFAOYSA-L
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Related Categories
1 of 4
This Item | 71640 | RDD022 | RDD038 |
|---|---|---|---|
| grade ACS reagent | grade ACS reagent, puriss. p.a. | grade anhydrous | grade - |
| assay ≥99.0% | assay ≥99.0% (T) | assay ≥99.0% | assay ≥99.0% |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| form powder | form powder (or crystals) | form powder | form powder or crystals |
| pH 8.7-9.3 (25 °C, 5% in solution) | pH 8.7-9.3 (25 °C, 50 mg/mL in H2O) | pH 8.9-9.2 (25 °C, 50 g/L in water) | pH 8.9-9.2 (25 °C, 50 g/L in water) |
| solubility water: 5% at 25 °C, clear | solubility - | solubility water: 100 mg/mL, clear, colorless | solubility water: soluble 100 mg/mL |
General description
Sodium phosphate dibasic in combination with sodium phosphate monobasic is used in the preparation of oral sodium phosphate solution (OSPS), which is a purgative used for bowel cleansing before colonoscopy.[1]
Application
Other Notes
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
Storage Class
13 - Non Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Is S9763 the anhydrate form?
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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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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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