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STA
Product #: 300016- Alkoxides
- STA
Formula Weight: 110.13 g/mol
CAS #: 11593-46-5
EINECS: 238-639-4
| Storage & Shipping | |||
| Packaging | 16 oz. bottle, containing 500g 5 gallon pail, containing 10 kg 30 gallon drum, containing 50 Kg |
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| Packaging Code 300016-100003 300016-200000 300016-220000 300016-220003 | Description STA Powder STA Powder STA Powder STA Powder | Measure (kg) 0.5 10 40 50 | Package Description Glass Bottle Pail Drum Drum |
| Shelf Life | One year in unopened, original packaging. Based upon like compounds. Additional stability information can be determined on request | ||
| Storage / Stability | STA reacts readily with water to form sodium hydroxide and 2-methyl-2-butanol. STA also absorbs carbon dioxide from the air. | ||
| Shipping | UN3206, PGII, 4.2(8) Alkali metal alcoholates, self-heating, corrosive, n.o.s. (contains: sodium 2-methylbutan-2-olate) |
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| Product Information | |||
| Density | - | ||
| Flash Point | - | ||
| Boiling Point | - | ||
| Use | Polar modifier used in conjuction with nBuLi to control vinyl content in anionic polymerization of strene-butadiene block copolymers; Strong specialty base for deprotonations and base catalyzed reactions | ||
| Physical Properties | |||
| Appearance | White to off-white powder | ||
| Physical Form | Solid | ||
| Solubility | Sodium tert.-amylate (STA) is highly soluble in hydrocarbons and ethers. STA is commercially available in t-amyl alcohol, tetrahydrofuran, toluene and hexanes. | ||
| Application | Moderately strong base for deprotonations or base catalyzed reactions. Excellent reagent for the formation of block copolymers. Used as a polar modifier for solution styrene-butadiene rubber and other anionic polymerizations. | ||
| Analysis Method | Base titration for concentration. Modified Karl Fisher for hydroxide/carbonate content | ||
| Analytical Note | - | ||
| Safety & Service | |||
| Health & Safety | See product MSDS | ||
| Technical Service | Available for all Callery products. Please contact your local representative for more details. | ||
| Notes | |||
| Product Notes | Note Soluble in ethers and hydrocarbons, non-corrosive to metals. Available in solution in THF, Toluene, Hexanes, tert.-amyl alcohol. Custom packaging and bulk quantities available. | ||