Key Features of Lithium T-Butoxide:
Chemical Structure:
Formula: LiOC(CH3)3
Molecular Weight: 80.06 g/mol
Appearance: Typically, lithium t-butoxide is found as a white to off-white crystalline solid or powder.
Properties:
Strong Base: Lithium t-butoxide is a very strong base, much stronger than alcohols and water. It is commonly used in deprotonation reactions and to generate enolates from carbonyl compounds.
Non-Nucleophilic: Unlike some bases, lithium t-butoxide is relatively bulky, which reduces its nucleophilicity. This makes it particularly useful in reactions where a strong base is needed, but nucleophilic attack needs to be minimized.
Solubility: It is soluble in organic solvents such as tetrahydrofuran (THF), ether, and hexane but less soluble in alcohols and water. In solution, it can react with moisture and COâ??, so it is typically handled under inert gas like nitrogen or argon.
Applications:
Organic Synthesis: Lithium t-butoxide is widely used in organic chemistry for base-catalyzed reactions, such as:
Deprotonation: Used to deprotonate weak acids, particularly when generating enolates from carbonyl compounds.
Elimination Reactions: Often employed in E2 elimination reactions to generate alkenes.
Cross-Coupling Reactions: It can be used in various coupling reactions, such as Suzuki or Heck reactions, as a base to help facilitate the reaction.
Polymerization: It may be used in the polymerization of certain monomers, taking advantage of its strong basicity.
Preparation of Other Organolithium Compounds: Lithium t-butoxide is sometimes used in the synthesis of other organolithium reagents.
Handling and Safety:
Reactivity: Lithium t-butoxide is highly reactive and sensitive to moisture and air, so it should be stored in a dry, inert atmosphere (e.g., under nitrogen or argon).
Safety Precautions: As with many strong bases, it can cause severe burns if it comes into contact with skin or eyes. Proper protective equipment, such as gloves and goggles, should be worn when handling it.
Flammability: It should be kept away from open flames and sources of ignition, as it can be flammable when in powder form.
Lithium t-butoxide is a strong, non-nucleophilic base widely used in organic synthesis for deprotonation, elimination reactions, and in the preparation of other organolithium reagents. Its reactivity and strength make it a valuable tool in various chemical reactions, though care must be taken in its handling due to its sensitivity to moisture and its corrosive nature.
Melting point 151-154 C(lit.) Boiling point 265 C100 mm Hg(lit.) Density 1,36 g/cm3 vapor density 5 (vs air) vapor pressure 1 mm Hg ( 159.5 C) refractive index 1.4880 FEMA 2011 | ADIPIC ACID Flash point 385 F storage temp. Store below +30C. solubility methanol: 0.1 g/mL, clear, colorless pka 4.43(at 25) form Solid color White Odor wh. monoclinic prisms, pract. odorless PH 3.74(1 mM solution);3.22(10 mM solution);2.71(100 mM solution); Water Solubility 1.44 g/100 mL (15 C) Merck 14,162 JECFA Number 623 BRN 1209788 Exposure limits ACGIH: TWA 5 mg/m3 Stability Stable. Substances to be avoided include ammonia, strong oxidizing agents. InChIKey WNLRTRBMVRJNCN-UHFFFAOYSA-N LogP 0.09 at 25â?? FDA 21 CFR 184.1009; 582.1009; 175.300; 175.320; 177.1680 Substances Added to Food (formerly EAFUS) ADIPIC ACID SCOGS (Select Committee on GRAS Substances) Adipic acid CAS DataBase Reference 124-04-9(CAS DataBase Reference) EWG's Food Scores 1 FDA UNII 76A0JE0FKJ NIST Chemistry Reference Hexanedioic acid(124-04-9) EPA Substance Registry System Adipic acid (124-04-9)
Product Name: Ectoin Other Name: Thp(B); (S)-2-Methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylic acid; (4S)-2-methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylic acid INCI NAME: ECTOIN Appearance: White Powder Purity: 98% Solubility: soluble in water, methanol Molecular Formula: C6H10N2O2 Molecular Weight: 142.16 CAS No: 96702-03-3 EINECS No: 431-910-1 Supplier: ZHENYIBIO Ectoine(Halomonas Elongate Extract) is a natural compound found in several bacteria.Ectoin serum is a compatible solute that acts as a protective substance by acting as a penetrant,thereby helping the organism resist extreme osmotic pressure.Ectoin powder has a lubricating and cell-protective effect in ectoin gel,creams and lotions,but it can also protect the skin from harmful environmental influences such as ultraviolet radiation,allergies and dust. Ectoin skincare used for skin or mucous membrane irritation or inflammation,such as dry nose,allergic rhinitis (hay fever) or inflamed skin diseases,such as neurodermatitis or psoriasis.Ectoine in the eye drops can stabilize the tear film,thereby reducing inflammation and allergic reactions in the eyes.The itching and burning of the eyes is reduced,and the overall feeling is improved.
Sodium Methoxide is clear, colourless to slightly yellowish, viscous liquid, Â Molecular weight 54.024 Mainly used in the production of vitamin A1, vitamin B1, long-acting sulfadiazine, sulfadiazine, trimethoprim and other pharmaceutical industry, but also for biodiesel industry. It can also be used as catalyst and analytical reagent.
Supplier: Chemical like sulphuric acid, phosphoric acid, aluminium chloride
aluminium hydroxide,calcium carbonate,
calcium chloride,
calcium hydrogenorthophosphate "dicalcium phosphate",
disodium carbonate: disodium carbonate dense,
disodium carbonate: disodium carbonate light,
disodium sulphate,
lithium carbonates,
manganese dioxide,
manganese oxides,
silicon dioxide,
sodium hydrogencarbonate "sodium bicarbonate",
sodium hydroxide "caustic soda" in aqueous solution "soda lye or liquid soda",
sodium hydroxide "caustic soda" solid: flakes of sodium hydroxide(naoh),solid, bauxite ore , calcined bauxite, limestone, zinc oxide; zinc peroxide: zinc oxide
Services: Quality and timely delivery
Product Name: Lithium Dodecyl Sulfate (LDS 97%) Type: Cosmetic raw materials Origin: China CAS No.: 2044-56-6 AUCO No.: 511 Packing: 200kg drum Items Standard Appearance White powder Active substance (%) 97 Petroleum ether soluble matter (%) 2.0 Lithium sulfate (%) 2.0 Lithium chloride (%) 0.1 Moisture(%) 2.0 PH value (3% aqueous solution) 7.5-10.5
Type: Cosmetic raw materials Origin: China CAS No.: 2044-56-6 AUCO No.: 511 Packing: 200kg drum Items Standard Appearance White powder Active substance (%) 97 Petroleum ether soluble matter (%) 2.0 Lithium sulfate (%) 2.0 Lithium chloride (%) 0.1 Moisture(%) 2.0 PH value (3% aqueous solution) 7.5-10.5
Physical characters: It is colorless, transparent, poisonless, smelless salty, easily deliquisences. Usage: Used as high efficient water vapour adsorption Agent in refrigrant. 30kg, 50kg, 300kg net in plastic drum.
A lithium methanol solution typically refers to a solution where lithium salts (such as lithium chloride or lithium perchlorate) are dissolved in methanol, a type of alcohol. This kind of solution is often used in chemical and electrochemical applications, including battery technology, organic synthesis, and as a reagent in various laboratory processes. Other Name Lithium Methoxide English Name Lithium Methoxide Lithium methanolate Lithium methylate; methoxylithium Methanol, lithium salt Molecular Formula CH3OLi Molecular weight 37.97 CAS No.: 865-34-9 1. Performance and use This product is a methanol solution of lithium methoxide. It is mainly used as A shrinkage agent and strong base catalyst for organic synthesis transesterification reaction, and methoxylation agent for the preparation of vitamin A, vitamin B, sulfadiazine drugs. A small amount is used in pesticide production. It can also be used as a catalyst for edible fatty oils. Battery Electrolytes: In some lithium battery chemistries, lithium methanol solutions can be used as electrolytes, though more commonly, solutions with organic carbonates are used. Organic Synthesis: Lithium methanol solutions can act as a reagent or catalyst in organic reactions, particularly where a polar aprotic solvent is needed. Chemical Analysis: In analytical chemistry, such solutions might be used in titrations or other procedures where lithium ions need to be present in a methanol medium. Electrochemical Studies: Lithium methanol solutions are also used in electrochemical experiments to study the behavior of lithium ions in various solvents.
Molecular Formula C8H9ClO Molecular Weight 156.61 CAS No. 88-04-0 Description White Or Creamy White Crystals Or Crystalline Powder,Characteristic Odour, Volatile In Steam Solubility Insoluble In Water, Soluble In Methanol, Acetone,& Alkali Solution Related Impurities Total 1.5 % max. 3,5 Dimethyl Phenol
