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
452882
Sodium borohydride
powder, ≥98.0%
Synonym(s):
Sodium tetrahydridoborate
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Product Name
Sodium borohydride, powder, ≥98.0%
InChI key
YOQDYZUWIQVZSF-UHFFFAOYSA-N
InChI
1S/BH4.Na/h1H4;/q-1;+1
SMILES string
[BH4-].[Na+]
assay
≥98.0%
form
powder
contains
0.45-0.70% Magnesium carbonate as anticaking agent
reaction suitability
reagent type: reductant
greener alternative product characteristics
Design for Energy Efficiency
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sustainability
Greener Alternative Product
impurities
≤100 ppm Silica
mp
>300 °C (dec.) (lit.)
cation traces
Fe: ≤5 ppm
greener alternative category
, Enabling
Quality Level
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This Item | 8.06373 | 480886 | 8.18823 |
|---|---|---|---|
| form powder | form solid | form granular | form solid |
| assay ≥98.0% | assay - | assay 99.99% trace metals basis | assay - |
| Quality Level 300 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| mp >300 °C (dec.) (lit.) | mp >360 °C (slow decomposition) | mp >300 °C (dec.) (lit.) | mp >360 °C (slow decomposition) |
| cation traces Fe: ≤5 ppm | cation traces - | cation traces - | cation traces - |
| impurities ≤100 ppm Silica | impurities - | impurities - | impurities - |
Application
- To prepare saturated alcohols by the reduction of conjugated aldehydes and ketones.[1]
- Along with Raney nickel for the reduction of aromatic nitro compounds to arylamines.[2]
- In the synthesis of secondary amines by reductive amination of ketones and aldehydes in the presence of an acid catalyst.[3]
- In the synthesis of δ and γ lactones by the reduction of cyclic anhydrides.[4]
- For the chemoselective reduction of N -protected amino acids and peptides to corresponding alcohols.[5]
General description
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Danger
hcodes
Hazard Classifications
Acute Tox. 3 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1B - Water-react 1
supp_hazards
Storage Class
4.3 - Hazardous materials which set free flammable gases upon contact with water
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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Articles
An article about metal borohydrides as hydrogen storage materials
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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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