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
B3545
Sodium tetraborate decahydrate
BioXtra, ≥99.5%
Synonym(s):
Borax decahydrate, Sodium borate decahydrate
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
product line
BioXtra
Quality Segment
assay
≥99.5%
form
powder
impurities
≤0.001% Phosphorus (P), ≤0.1% Insoluble matter
pH
9.2 (10 g/L)
solubility
H2O: 0.1 M, clear, colorless
density
1.73 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.05%, sulfate (SO42-): ≤0.05%
cation traces
Al: ≤0.0005%, Ca: ≤0.01%, Cu: ≤0.0005%, Fe: ≤0.001%, K: ≤0.005%, Mg: ≤0.0005%, NH4+: ≤0.05%, Pb: ≤0.001%, Zn: ≤0.0005%
SMILES string
O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2
InChI
1S/B4O7.2Na.10H2O/c5-1-7-3-9-2(6)10-4(8-1)11-3;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;
InChI key
CDMADVZSLOHIFP-UHFFFAOYSA-N
Application
- as a buffer component in biotinylation assay.
- in preparation of methylene blue solution for histological staining.
- as a component of trace metal solution for medium supplementation.
Biochem/physiol Actions
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| assay ≥99.5% | assay ≥99.5% | assay 99.0-103.0% | assay 99.0-103.0% (acidimetric) |
| product line BioXtra | product line ReagentPlus® | product line - | product line EMPROVE® ESSENTIAL |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 500 |
| form powder | form powder | form crystalline | form solid |
| density 1.73 g/mL at 25 °C (lit.) | density 1.73 g/mL at 25 °C (lit.) | density 1.73 g/mL at 25 °C (lit.) | density 1.72 g/cm3 at 20 °C |
| pH 9.2 (10 g/L) | pH 9.2 (10 g/L) | pH 9.0-9.6 (20 °C, 5%) | pH 9.2 (20 °C, 47 g/L in H2O) |
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signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Repr. 1B
Storage Class
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| B3545-500G | 04061833428252 |
| B3545-1KG | 04061826752234 |
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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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