아세틸화나트륨

한글명:아세틸화나트륨

카스 번호1066-26-8

상품명:SODIUM ACETYLIDE

CBNumberCB2455464

분자식C2HNa

포뮬러 무게48.02

MOL 파일1066-26-8.mol

동의어(한글)

아세틸화나트륨

소듐 수소 아세틸라이드

화학적 성질

끓는 점	-22.2°C
밀도	0,865 g/cm³
인화점	85 °F
저장 조건	Refrigerator (+4°C) + Flammables area
물리적 상태	저융점 고체 또는 결정성 분말
색상	흰색에서 연한 노란색
수용성	물과 반응합니다.
감도	Air & Moisture Sensitive
BRN	3587232
CAS 데이터베이스	1066-26-8(CAS DataBase Reference)
EPA	Sodium acetylide (1066-26-8)

위험 및 안전 성명

위험품 표기	F,Xn,C
위험 카페고리 넘버	10-15-20/21-38-34-14/15
안전지침서	36/37-43-45-36/37/39-26
유엔번호(UN No.)	UN 3399 4.3/PG 1
WGK 독일	3
TSCA	Yes
위험 등급	4.3
포장분류	II
HS 번호	29310099

그림문자(GHS)

아세틸화나트륨 화학적 특성, 용도, 생산

개요
Sodium acetylide is an unstable powder, a salt of acetylene. It is a severe explosion risk when shocked or heated. It is used in the manufacture of detonators.
화학적 성질
brown slurry
용도
Sodium acetylide suspension has been used in the preparation of: 2-ethynyladamantan-2-ol1 apical-equatorial (ae) isomer of (Et4N)3[1-(2′-B10H9)-2-NH3B10H8]2 trimethylsilylacetylene3
정의
ChEBI: The salt formed from the acetylide monoanion and a single sodium cation.
Purification Methods
It sometimes contains diluents, e.g. xylene, butyl ether or dioxane which can be removed by filtration followed by a vacuum at 65-60o/5mm. Alternatively the acetylide is purged with HCCH at 100-125o to remove diluent. NaC2H adsorbs 2.2x, 2.0x and 1.6x its wt of xylene, butyl ether and dioxane, respectively. Powdered NaC2H is yellow or yellow-gray in colour and is relatively stable. It can be heated to ca 300o in the absence of air. Although no explosion or evolution of gas occurs, it turns brown due to disproportionation. At 170-190o in air it ignites slowly and burns smoothly. At 215-235o in air it “flash-ignites” and burns quickly. It can be dropped into a slight excess of H2O without flashing or burning, but vigorous evolution of HC CH (HIGHLY FLAMMABLE IN AIR) occurs. The sample had been stored in the absence of air for one year without deterioration. Due to the high flammability of HCCH, the salt should be stored dry and should be treated with care. After long storage, NaCCH can be redissolved in liquid NH3 and used for the same purposes as the fresh material. However it may be slightly turbid due to the presence of moisture. [Rutledge J Org Chem 22 649 1957, Greenlee & Henne J Am Chem Soc 77 5013 1955, Campbell & Campbell Inorg Synth II 76, 81 1946, Org Synth 30 15 1950, Beilstein 1 H 238.] It is available commercially under N2 in Sure/Seal bottles as an 18 wt% solution in xylene/mineral oil. See “Aliphatic Compounds”, Chapter 4, for its prepartion.

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