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
B9876
Sodium tetraborate decahydrate
ReagentPlus®, ≥99.5%
Synonym(s):
Borax decahydrate, Sodium borate decahydrate
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About This Item
agency
suitable for SM 4500 - NH3
Quality Segment
product line
ReagentPlus®
assay
≥99.5%
form
powder
pH
9.2 (10 g/L)
density
1.73 g/mL at 25 °C (lit.)
storage temp.
room temp
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
- A component of a buffer solution used in the separation and estimation of thiamin and its phosphate esters in commercial tablets.
- A fluxing agent in the preparation of ceramizable silicone rubber-derived composite materials.
- A crosslinking agent in the synthesis of porous foams by reacting cellulose nanofibres with poly-vinyl alcohol.
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| form powder | form powder or crystals | form powder or crystals | form crystalline |
| assay ≥99.5% | assay ≥99.5% | assay ≥99.5% | assay 99.0-103.0% |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| pH 9.2 (10 g/L) | pH 9.15-9.20 (25 °C, 0.01 M in solution) | pH 9.0-9.6 (20 °C, 5%) | pH 9.0-9.6 (20 °C, 5%) |
| 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 1.73 g/mL at 25 °C (lit.) |
| product line ReagentPlus® | product line - | product line - | product line - |
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signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Repr. 1B
flash_point_f
Not applicable
flash_point_c
Not applicable
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
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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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