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/418/501/product-dating-information-06-25-mk.pdf
04283
Sodium phosphite dibasic pentahydrate
≥98%
Promotion Available
Synonym(s):
di-Sodium hydrogen phosphite
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| Size/SKU | Availability | Price |
|---|---|---|
250 g | Check Cart for Availability | $46.00 |
1 kg | Check Cart for Availability | $133.00 |
About This Item
$46.00
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Quality Segment
assay
≥98%
form
crystals
impurities
≤0.001% heavy metals (as Pb)
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Fe: ≤10 mg/kg
SMILES string
O.O.O.O.O.[Na+].[Na+].OP([O-])[O-]
InChI
1S/2Na.HO3P.5H2O/c;;1-4(2)3;;;;;/h;;1H;5*1H2/q2*+1;-2;;;;;
InChI key
FBKBMXXJECMLCQ-UHFFFAOYSA-N
Application
1 of 1
This Item | |||
|---|---|---|---|
| description ≥98% | description United States Pharmacopeia (USP) Reference Standard | description meets analytical specification of Ph. Eur., BP, 98.5-101% (calc. to the dried substance) | description BioXtra, ≥98.0% (T) |
| form crystals | form - | form crystals | form crystals |
| assay ≥98% | assay - | assay 98.5-101% (calc. to the dried substance) | assay ≥98.0% (T) |
| Quality Level 100 | Quality Level - | Quality Level 200 | Quality Level 300 |
| cation traces Fe: ≤10 mg/kg | cation traces - | cation traces Fe: ≤10 mg/kg, As: ≤2 mg/kg | cation traces K: ≤100 mg/kg, Cd: ≤50 mg/kg, Pb: ≤50 mg/kg, Fe: ≤50 mg/kg, Cu: ≤50 mg/kg, Ni: ≤50 mg/kg, Co: ≤50 mg/kg, Ca: ≤50 mg/kg, Zn: ≤50 mg/kg |
| impurities ≤0.001% heavy metals (as Pb) | impurities - | impurities ≤0.001% heavy metals (as Pb), residual solvents, complies, reducing matter, complies, ≤1% NaH2PO4 (calc. to dried subst.) | impurities - |
| anion traces chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg | anion traces - | anion traces chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg | anion traces chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg |
Storage Class
11 - Combustible Solids
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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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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