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
196193
Red-Al® sodium bis(2-methoxyethoxy)aluminum hydride solution
≥60 wt. % in toluene
Synonym(s):
SBAH, Sodium bis(2-methoxyethoxy)aluminum dihydride, Sodium dihydrido-bis(2-methoxyethoxy)aluminate
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$55.10
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About This Item
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vapor pressure
21 mmHg ( 20 °C)
Quality Level
expl. lim.
7 %
reaction suitability
reagent type: reductant
concentration
≥60 wt. % in toluene
density
1.036 g/mL at 25 °C
functional group
ether
SMILES string
[Na+].[H][Al-]([H])(OCCOC)OCCOC
InChI
1S/2C3H7O2.Al.Na.2H/c2*1-5-3-2-4;;;;/h2*2-3H2,1H3;;;;/q2*-1;2*+1;;
InChI key
XJIQVZMZXHEYOY-UHFFFAOYSA-N
Related Categories
1 of 4
This Item | 214973 | 190306 | 192724 |
|---|---|---|---|
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| reaction suitability reagent type: reductant | reaction suitability reagent type: reductant | reaction suitability reagent type: reductant | reaction suitability reagent type: reductant |
| density 1.036 g/mL at 25 °C | density 1.23 g/mL at 25 °C | density 0.701 g/mL at 25 °C | density 0.846 g/mL at 25 °C |
| vapor pressure 21 mmHg ( 20 °C) | vapor pressure - | vapor pressure - | vapor pressure - |
| expl. lim. 7 % | expl. lim. - | expl. lim. - | expl. lim. - |
| concentration ≥60 wt. % in toluene | concentration 1.0 M in methylene chloride | concentration 1.0 M in hexanes | concentration 25 wt. % in toluene |
General description
- Aldehydes, ketones, esters, and anhydrides to primary alcohols.
- Ketoximes and aldoximes to primary amines.
- Cyclic compounds such as lactones and epoxides to diols.
It is also used as a catalyst in the ring-opening polymerization reactions.[1][2][3]
SBAH is a reducing agent used to reduce functional groups like carbonyls, amides, epoxides, esters, and carboxylic acids.[4]
Application
- A tosyl deprotecting agent.[6]
- A catalyst for crosslinking of polyvinylsilanes (PVS) by Si-Si dehydrocoupling reaction in the presence of group 4 metallocene complexes.[7]
- A reducing reagent for the synthesis of optically active N-protected amino alcohols and peptide alcohols.[8]
Legal Information
signalword
Danger
Hazard Classifications
Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - Skin Corr. 1B - STOT RE 2 Inhalation - STOT SE 3 - Water-react 1
target_organs
Central nervous system
supp_hazards
Storage Class
4.3 - Hazardous materials which set free flammable gases upon contact with water
wgk_germany
WGK 3
flash_point_f
39.2 °F - closed cup
flash_point_c
4 °C - closed cup
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Articles
Red-Al® is a versatile and safe reducing agent, serving as a substitute for LiAlH4 in many reactions, with nonpyrophoric properties.
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How can I determine the shelf life / expiration / retest date of this product?
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We are looking to use this as a hydrogen generation system in a closed system to fill a balloon. What volume of gas is generated per kg of solid product.
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The theoretical yield from 1 kilogram of this product is 110 Liters of hydrogen gas. The actual yield would likely be some amount less than the theoretical yield.
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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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