칼륨과 나트륨의 합금

칼륨과 나트륨의 합금 속성

칼륨과 나트륨의 합금 C화학적 특성, 용도, 생산

용도

Alternative to other reagents for desulfurizations, dehalogenations(as Wurtz coupling reactions), and Birch reductions.

Additionally can be used as:

• A reducing agent for aliphatic ester substrates
• A deprotectant in place of the typical heavy metal deprotectant

주요 응용

Sodium-Potassium Alloy is used for preparation of organopotassium compounds; in combination with TMSCl, greatly enhances acyloin condensations; dehalogenation of dihalides; preparation of γ, δ-unsaturated alcohols via fragmentation of γ-halo ketones; in combination with crown ethers is a useful reducing agent for alkynes and alkyl fluorides.

제조 방법

Sodium-Potassium Alloy can be prepared by mixing 1 part Sodium and 5 parts Potassium (by weight) in refluxing xylene until melted. The melt is then carefully mixed with a glass stirring rod, keeping the alloy in one large globule. Upon cooling to room temperature, the alloy will remain liquid and can easily be transferred via a glass pipet.^[1]

Safety Profile

A low-melting alloy of Na and K. Its toxicity is due to either Na or K alone. Corrosive to the eyes, skin, and mucous membranes. Upon contact with moisture it reacts violently to evolve H2; much heat; and a highly caustic residue of NaOH or KOH. Oxidation forms Na2O and K2O, whch are powerful caustics. A dangerous fire and explosion hazard. Violent or explosive reaction with O2, water, moisture, steam, halogens, oxidzers, acids or acid fumes, gving off much heat, hydrogen, toxic and corrosive fumes, often spattering either red-hot particles or actually flaming particles. A severe explosion hazard, wiU react explosively under the appropriate condtions with moisture, acids, acid fumes, solid CO2, carbon disulfide, halocarbons (e.g., CH3Cl, carbon tetrachloride, chloroform, bromoform,1,1,1- trichloroethane, 1,1,2- trichlorotrifluoroethane, tetrachloroethane, CH2Cl2, CH2l2), ammonium sulfate + NH4 + No3, HgO, metal halides (e.g., silver halides, zinc chloride, iron(Ⅲ) chloride), metal oxides (e.g., silver oxide, mercury oxide), nitrogen-containing explosives (e.g., ammonium nitrate, ammonium sulfate, picric acid, nitrobenzene), oxalyl bromide, oxalyl chloride, pentachloroethane, K oxides, KO2, Si, NaHCO3, polytetrafluoroethylene. Reacts vigorously with oxidizing materials. To fight fire, use G-1 powder, dry sodum chloride, dry sodium carbonate, dry calcium carbonate, dry sand, resin-coated sodium chloride, or dry soda ash. Never use water, graphite, carbon dioxide, halocarbons, or foam. Dangerous; when heated it emits highly toxic fumes of Na2O and K2O. Used as a liquid coolant for nuclear reactor cores. See also SODIUM and POTASSIUM.

칼륨과 나트륨의 합금 준비 용품 및 원자재

원자재

준비 용품

칼륨과 나트륨의 합금 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22963	58
Hebei Fengjia New Material Co., Ltd	+86-0311-87836622 +86-18712993135	sales01@tairunfaz.com	China	8051	58
Aladdin Scientific		tp@aladdinsci.com	United States	57505	58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.	+8618950047208	ellena@amitychem.com	China	43416	58
Meryer (Shanghai) Chemical Technology Co., Ltd.	021-61259108 18621169109	market03@meryer.com	China	40228	62
Energy Chemical	021-021-58432009 400-005-6266	sales8178@energy-chemical.com	China	44731	61
Shanghai Aladdin Bio-Chem Technology Co.,LTD	400-6206333 13167063860	anhua.mao@aladdin-e.com	China	25003	65
Sigma-Aldrich	021-61415566 800-8193336	orderCN@merckgroup.com	China	51395	80
Shanghai YuanYe Biotechnology Co., Ltd.	021-61312847; 18021002903	3008007409@qq.com	China	71826	60
Guangdong Wengjiang Chemical Reagent Co.,Ltd.	0751-2815983 13927872582	3008325437@qq.com	China	6379	58

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