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
1.06649
Sodium sulfate
anhydrous for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 500 g | Estimated to ship onOctober 06, 2026 | $52.10 | |
| 1 kg | Estimated to ship TODAY | $80.10 | |
| 5 kg | Estimated to ship TODAY | $280.00 | |
| 25 kg | Estimated to ship onOctober 06, 2026 | $1,150.00 |
About This Item
grade
ACS reagent
Quality Level
agency
reag. ISO, reag. Ph. Eur.
product line
EMSURE®
assay
≥99.0% (alkalimetric), 98.5-101% dry basis (alkalimetric)
form
solid
potency
>2000 mg/kg LD50, oral (Rat)
impurities
≤0.01% Insoluble matter
loss
≤0.5% loss on drying, 130 °C, ≤0.5% loss on ignition, 800 °C
pH
5.2-8.0 (20 °C, 50 g/L in H2O)
mp
884 °C (lit.)
density
2.68 g/mL at 25 °C (lit.)
bulk density
1400‑1600 kg/m3
anion traces
chloride (Cl-): ≤0.001%, phosphate (PO43-): ≤0.001%
cation traces
As: ≤0.0001%, Ca: ≤0.005%, Fe: ≤0.0005%, K: ≤0.002%, Mg: ≤0.001%, N: ≤0.0005%, heavy metals: ≤0.0005%, heavy metals (as Pb): ≤0.0005%
storage temp.
2-30°C
SMILES string
[Na+].[Na+].[O-]S([O-])(=O)=O
InChI
1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
InChI key
PMZURENOXWZQFD-UHFFFAOYSA-L
Analysis Note
Assay (alkalimetric, calculated on dried substance): 98.5 - 101.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.01 %
Acidity or alkalinity: passes test
pH-value (5 %; water; 25 °C): 5.2 - 8.0
Chloride (Cl): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.001 %
Total nitrogen (N): ≤ 0.0005 %
Heavy metals (ACS): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.002 %
Mg (Magnesium): ≤ 0.001 %
Loss on drying (130 °C): ≤ 0.5 %
Loss on ignition (800 °C): ≤ 0.5 %
Corresponds to ACS, ISO, Reag. Ph Eur
Other Notes
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| form solid | form - | form crystalline | form crystals |
| assay ≥99.0% (alkalimetric), 98.5-101% dry basis (alkalimetric) | assay - | assay 99.5% dry basis | assay ≥99.0% |
| Quality Level 300 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| grade ACS reagent | grade anhydrous | grade anhydrous | grade ACS reagent |
| impurities ≤0.01% Insoluble matter | impurities - | impurities - | impurities ≤0.01% Insoluble matter, ≤1% Mesh size (100 and finer) |
| pH 5.2-8.0 (20 °C, 50 g/L in H2O) | pH - | pH - | pH 5.2-8.0 (20 °C, 50 g/L in H2O) |
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Storage Class
13 - Non Combustible Solids
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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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 1066490500 | 04022536080550 |
| 1066499025 | 04022536080611 |
| 1066495000 | 04022536080598 |
| 1066491000 | 04022536080574 |
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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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