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
221732
Sodium tetraborate
99%
Synonym(s):
Borax, fused
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
100 g | Available to ship TODAYfromMILWAUKEE | $44.40 |
500 g | Available to ship TODAYfromMILWAUKEE | $75.90 |
2.5 kg | Available to ship TODAYfromMILWAUKEE | $163.00 |
About This Item
$44.40
Available to ship TODAYDetails
agency
suitable for SM 4500 - NH3
Quality Segment
assay
99%
form
solid
mp
741 °C (lit.)
density
2.367 g/mL at 25 °C (lit.)
SMILES string
[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2
InChI
1S/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1
InChI key
UQGFMSUEHSUPRD-UHFFFAOYSA-N
Application
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| description 99% | description puriss. p.a., anhydrous, ≥98.0% (T) | description BioUltra, anhydrous, ≥99% | description BioUltra, anhydrous, ≥99% |
| form solid | form crystals | form crystals | form crystals |
| assay 99% | assay ≥98.0% (T) | assay ≥99% | assay ≥99% |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| mp 741 °C (lit.) | mp - | mp - | mp - |
| density 2.367 g/mL at 25 °C (lit.) | density - | density - | density - |
| agency suitable for SM 4500 - NH3 | agency - | agency - | agency - |
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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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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?
1 answer-
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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Do we offer a more water soluble Sodium tetraborate?
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Product No. S9640, Sodium tetraborate decahydrate, is soluble in water at 62 mg/mL or 160 mM. If you use hot water you can get a 4.4 M solution.
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Is Product 221732, Sodium tetraborate, a fused borax?
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Yes, Product No. 221732 is a fused borax.
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What is the appearance of Product 221732, Sodium tetraborate?
1 answer-
This product is a powder. It may be either crystalline or granular.
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Is Product 221732, Sodium tetraborate, soluble in water?
1 answer-
Per the chemicals encyclopedia published by the Royal Society of Chemistry this product is slow to dissolve in water and may require heat at 40°C and stirring. We have tested the solubility at 33 mg/mL water.
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