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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P5754
Potassium tetraborate tetrahydrate
ReagentPlus®, ≥99.5%
Synonim(y):
Potassium biborate
Wybierz wielkość
| Rozmiar/SKU | Dostępność | Cena netto |
|---|---|---|
500 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 218,00 zł |
2.5 kg | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 792,00 zł |
Informacje o tej pozycji
218,00 zł
Quality Segment
product line
ReagentPlus®
assay
≥99.5%
form
powder
reaction suitability
core: potassium
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Cd: ≤50 mg/kg, Co: ≤50 mg/kg, Cu: ≤50 mg/kg, Fe: ≤50 mg/kg, Na: ≤5000 mg/kg, Ni: ≤50 mg/kg, Pb: ≤50 mg/kg, Zn: ≤50 mg/kg, Ca: ≤50 mg/kg
SMILES string
O.O.O.O.[K+].[K+].[O-]B([O-])OB1OB(OB=O)O1
InChI
1S/B4O7.2K.4H2O/c5-1-8-3-10-4(11-3)9-2(6)7;;;;;;/h;;;4*1H2/q-2;2*+1;;;;
InChI key
FZICZLCGJZRAHS-UHFFFAOYSA-N
General description
Application
- As an electrolyte for electrochemical water splitting reaction. The addition of K2B4O7 · 4H2O enhances the oxygen evolution activity of the catalyst.
- To synthesize carbon foams with hierarchical pores, for supercapacitors. K2B4O7 · 4H2O helps to tune the pore structure of carbon foams.
- To prepare green formulation for the removal of pyrite(FeS2) scales from oil and gas tubings.
Legal Information
1 of 1
Ta pozycja | |
|---|---|
| description ReagentPlus®, ≥99.5% | description 98.9-101.2% B2O3 basis |
| form powder | form powder |
| assay ≥99.5% | assay 98.9-101.2% B2O3 basis |
| Quality Level 200 | Quality Level 200 |
| anion traces chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg | anion traces - |
| cation traces Fe: ≤50 mg/kg, Co: ≤50 mg/kg, Cu: ≤50 mg/kg, Ca: ≤50 mg/kg, Cd: ≤50 mg/kg, Ni: ≤50 mg/kg, Zn: ≤50 mg/kg, Pb: ≤50 mg/kg, Na: ≤5000 mg/kg | cation traces - |
| product line ReagentPlus® | product line - |
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Słowo ostrzegawcze
Warning
Kody zagrożeń
Hazard Classifications
Repr. 2
Klasa składowania
11 - Combustible Solids
Co się dzieje?
WGK 3
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
PPE (środki ochrony indywidualnej)
dust mask type N95 (US), Eyeshields, Gloves
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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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What is the expiration/shelf life of this reagent?
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This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one year warranty from the date of shipment. For more information you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.
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