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
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| Size/SKU | Availability | Price |
|---|---|---|
1 kg | Check Cart for Availability | $77.80 $66.13 |
About This Item
$66.13
List Price$77.80Save 15%Quality Segment
grade
purum
form
powder (light)
composition
Mg (as MgO), ≥40%
impurities
≤0.005% heavy metals (as Pb)
anion traces
chloride (Cl-): ≤500 mg/kg
cation traces
Ca: ≤1%, Fe: ≤500 mg/kg
SMILES string
[Mg++].O[Mg]O.[O-]C([O-])=O
InChI
1S/CH2O3.2Mg.2H2O/c2-1(3)4;;;;/h(H2,2,3,4);;;2*1H2/q;2*+2;;/p-4
InChI key
UDYRPJABTMRVCX-UHFFFAOYSA-J
Application
- A stabilizer for phase formation
- IR high-pass transmittance filter
1 of 1
This Item | |||
|---|---|---|---|
| description purum, light, ≥40% Mg (as MgO) basis, powder (light) | description purum p.a., heavy, ≥40% (MgO) | description BioXtra | description 99.9% trace metals basis |
| grade purum | grade purum p.a. | grade - | grade - |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| form powder (light) | form powder | form powder | form powder |
| cation traces Fe: ≤500 mg/kg, Ca: ≤1% | cation traces Zn: ≤50 mg/kg, K: ≤100 mg/kg, Fe: ≤50 mg/kg, Cu: ≤50 mg/kg, Co: ≤50 mg/kg, Cd: ≤50 mg/kg, Na: ≤2000 mg/kg, Ni: ≤50 mg/kg, Pb: ≤50 mg/kg, Ca: ≤1000 mg/kg | cation traces NH4+: ≤0.05%, Fe: ≤0.02%, Ca: ≤0.5%, K: ≤0.005%, Al: ≤0.01%, Na: ≤0.03%, Zn: ≤0.0005%, Pb: ≤0.001%, Cu: ≤0.0005% | cation traces - |
| impurities ≤0.005% heavy metals (as Pb) | impurities - | impurities ≤0.1% Insoluble matter, ≤0.005% Phosphorus (P) | impurities ≤1500.0 ppm Trace Metal Analysis |
| anion traces chloride (Cl-): ≤500 mg/kg | anion traces chloride (Cl-): ≤100 mg/kg, sulfate (SO42-): ≤6000 mg/kg | anion traces sulfate (SO42-): ≤0.05%, chloride (Cl-): ≤0.1% | anion traces - |
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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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