1066-26-8 Usage
Uses
Used in Chemical Synthesis:
Sodium acetylide is used as a reagent for the synthesis of various organic compounds, including:
1. 2-ethynyladamantan-2-ol
2. apical-equatorial (ae) isomer of (Et4N)3[1-(2′-B10H9)-2-NH3B10H8]2
3. trimethylsilylacetylene
Used in the Preparation of Rhodium(I) Amidinate Complexes:
Sodium acetylide suspension is employed as a reagent in the synthesis of rhodium(I) amidinate complexes, which are important in various chemical reactions and applications.
Used in the Manufacture of Detonators:
Due to its explosive properties, sodium acetylide is used in the production of detonators, which are essential components in the initiation of explosive devices.
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.
Check Digit Verification of cas no
The CAS Registry Mumber 1066-26-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,6 and 6 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1066-26:
(6*1)+(5*0)+(4*6)+(3*6)+(2*2)+(1*6)=58
58 % 10 = 8
So 1066-26-8 is a valid CAS Registry Number.
InChI:InChI=1/C2H.Na/c1-2;/h1H;/rC2HNa/c1-2-3/h1H
1066-26-8Relevant academic research and scientific papers
Millimeter-wave spectroscopy of vibrationally-excited NaCCH (X(1)Σ(+)) and MgCCH (X(2)Σ(+)): the v(5) bending mode
Brewster, M. A.,Apponi, A. J.,Xin, J.,Ziurys, L. M.
, p. 411 - 422 (2008/10/08)
Pure rotational spectra of NaCCH (X(1)Σ(+)) and MgCCH (X(2)Σ(+)) have been recorded in their ground state and v(5) vibrational level, the metal-C-C bend, in the range 315-525 GHz using millimeter-wave direct absorption techniques. This data set complements previous measurements. For NaCCH, rotational transitions were recorded for v(1)(5)=0(0), 1(1), 2(2), 2(0), 3(3), and 4(4) levels, and for the 0(0) states of NaCCD and Na(13)CCH. Transitions originating in the 1(1), 2(0), and 2(2) states of MgCCH were additionally observed. Rotational, l-type doubling, and vibration-rotation parameters have been determined for both species, as well as estimates of the ω(5) bending frequency.
