Diacetylene supplier | CasNO.460-12-8

Name
Diacetylene
EINECS 207-303-9
CAS No. 460-12-8
Article Data138
CAS DataBase
Density 0.806g/cm³
Solubility 1g/L(25 oC)
Melting Point -35.99°C
Formula C4H2
Boiling Point 10.3°Cat760mmHg
Molecular Weight 50.0599
Flash Point °C
Transport Information
Appearance gas
Safety A dangerous explosive. Polymerizes violently above 0°C. Arsenic pentafluoride catalyzes explosive polymerization. Reaction with silver nitrate forms a very explosive friction-sensitive product. When heated to decomposition it emits acrid smoke and fumes.
Risk Codes
Molecular Structure
Hazard Symbols
Synonyms Butadiyne(8CI); Biacetylene; Biethynyl; Diacetylene
PSA 0.00000
LogP 0.25280

Synthetic route

: 821-10-3
1,4-Dichloro-2-butyne

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
With potassium hydroxide In dimethyl sulfoxide at 70 - 75℃; into -78 deg C cooling trap;	93%
With potassium hydroxide In tetrahydrofuran; water; dimethyl sulfoxide at 95℃; for 0.25h;	90%
With potassium hydroxide Dehydrochlorination;	50%

: 65032-27-1
ethynylmagnesium chloride

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
With 1,2-dichloro-ethane; manganese(ll) chloride In tetrahydrofuran at 25℃; for 12h; Inert atmosphere;	67.5%

: 584-12-3
2-bromofuran

A: 460-12-8
Butadiyne

B: 74-86-2
acetylene

Conditions

Conditions	Yield
Zersetzung durch Ultraschall;

: 5929-72-6
2,7-dimethyl-octa-3,5-diyne-2,7-diol

A: 460-12-8
Butadiyne

B: 67-64-1
acetone

Conditions

Conditions	Yield
With calcium hydroxide at 125 - 130℃;
With barium dihydroxide at 125 - 130℃;
With potassium carbonate at 125 - 130℃;

: 513-35-9
2-methyl-but-2-ene

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
bei der Einw. dunkler elektrischer Entladungen;

: 101-84-8
diphenylether

A: 460-12-8
Butadiyne

B: 74-85-1
ethene

Conditions

Conditions	Yield
at 970 - 1170℃; Pyrolysis;

: 34557-54-5
methane

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
bei der Funkenentladung;

: 74-84-0
ethane

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
bei der pyrogenen Spaltung im Lichtbogen;

: 1529-68-6
1,2,3,4-tetrabromobutane

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
With potassium hydroxide

: 36678-47-4
1,2-dibromo-buta-1,3-diene

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
With potassium hydroxide

: 1066-26-8
sodium acetylide

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
With potassium permanganate; ammonia

: 141-52-6
sodium ethanolate

: 821-10-3
1,4-Dichloro-2-butyne

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
at 60℃;

: 106-97-8
n-butane

A: 689-97-4
3-buten-1-yne

B: 460-12-8
Butadiyne

C: 107-00-6
but-1-yne

D: 74-86-2
acetylene

Conditions

Conditions	Yield
bei der Einwirkung von Hochfrequenz-Entladungen;

...Expand

: 689-97-4
3-buten-1-yne

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
In gas at 426.9 - 1026.9℃; under 76 Torr; Kinetics;

: 4664-08-8
cinchomeronic anhydride

A: 460-12-8
Butadiyne

B: 74-86-2
acetylene

Conditions

Conditions	Yield
Irradiation;

: 7129-66-0
3,4-Didehydropyridine

A: 460-12-8
Butadiyne

B: 1070-71-9
propiolonitrile

C: 74-86-2
acetylene

Conditions

Conditions	Yield
at -260.2℃; for 0.5h; Irradiation; photolysis, λ>210 nm;

...Expand

: 91-20-3
naphthalene

A: 460-12-8
Butadiyne

B: 74-86-2
acetylene

Conditions

Conditions	Yield
under 0.06 Torr; Mechanism; Product distribution; Irradiation; XeCl-excimerlaser ( 308 nm, 64 mJ, 7.5 ns );

: 392-56-3
Hexafluorobenzene

A: 116-14-3
polytetrafluoroethylene

B: 460-12-8
Butadiyne

C: 76-16-4
Hexafluoroethane

D: 363-72-4
Pentafluorobenzene

E: 74-86-2
acetylene

Conditions

Conditions	Yield
With hydrogen Mechanism; Thermodynamic data; Irradiation; ΔH (excit.), various mole fractions of reactants;	A n/a B n/a C n/a D 3 % Chromat. E n/a

...Expand

: 34557-54-5
methane

A: 460-12-8
Butadiyne

B: 74-84-0
ethane

C: 74-85-1
ethene

D: 463-49-0
1,2-propanediene

E: 74-86-2
acetylene

Conditions

Conditions	Yield
With carbon vapors at -196.1℃; Mechanism; laser carbon evaporation; other temperature;

...Expand

: 74-85-1
ethene

A: 460-12-8
Butadiyne

B: 91-20-3
naphthalene

C: 3161-99-7
hexa-1,3,5-triyne

D: 6165-96-4
octa-1,3,5,7-tetrayne

E: 71-43-2
benzene

Conditions

Conditions	Yield
With oxygen In gas under 30 Torr; Mechanism; flame stabilized diffusion, analysed by MS;

...Expand

: 593-61-3
bromoethyne

: 2122-48-7
ethynyl

A: 460-12-8
Butadiyne

B: 53561-65-2
butadiynyl

Conditions

Conditions	Yield
Rate constant;

...Expand

: 593-61-3
bromoethyne

A: 689-97-4
3-buten-1-yne

B: 460-12-8
Butadiyne

C: 3161-99-7
hexa-1,3,5-triyne

D: 6165-96-4
octa-1,3,5,7-tetrayne

E: 74-86-2
acetylene

Conditions

Conditions	Yield
With sodium at 349.9℃; under 3.8 Torr; Product distribution; Mechanism; Thermodynamic data; also in the presence of ethyne, butadiyne, other temperatures;

...Expand

: 513-37-1
2-methylprop-1-enyl chloride

A: 460-12-8
Butadiyne

B: 503-17-3
dimethylacetylene

C: 463-49-0
1,2-propanediene

D: 106-99-0
buta-1,3-diene

Conditions

Conditions	Yield
under 4 - 5 Torr; Product distribution; Irradiation; various added gases;

...Expand

: 2810-61-9
but-1-en-3-ynyl

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
In gas at 426.9 - 1026.9℃; under 76 Torr; Kinetics;

: 83682-45-5
1,4-dichloro-1-butyne

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
With potassium hydroxide In 1,4-dioxane

: 108-88-3
toluene

A: 460-12-8
Butadiyne

B: 2396-01-2
phenyl radical

C: 2154-56-5
benzyl radical

D: 74-86-2
acetylene

Conditions

Conditions	Yield
under 152 - 380 Torr; Product distribution; Kinetics; Thermodynamic data; thermal decomposition at 1550-2200 K by shock tube techniques; products were detected by MS; Ea;

...Expand

: C4H3

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
In gas at 426.9 - 1026.9℃; under 76 Torr; Kinetics;

: 392-56-3
Hexafluorobenzene

: 74-86-2
acetylene

A: 460-12-8
Butadiyne

B: 2713-09-9
fluoroethyne

C: 661-54-1
3,3,3-trifluoroprop-1-yne

D: 363-72-4
Pentafluorobenzene

E: 5122-07-6
2,3,4,5,6-pentafluorophenylacetylene

Conditions

Conditions	Yield
Mechanism; Irradiation;

...Expand

: 2122-48-7
ethynyl

: 74-86-2
acetylene

: 460-12-8
Butadiyne

Conditions

Conditions	Yield
at 19.9℃; under 30 Torr; Rate constant; He; or 5 Torr;
Rate constant;
at -130.1 - 85.9℃; Kinetics; Irradiation;

: 74-86-2
acetylene

A: 689-97-4
3-buten-1-yne

B: 460-12-8
Butadiyne

Conditions

Conditions	Yield
Mechanism; pyrolysis;
In solid matrix at -263.2℃; Irradiation;

: 460-12-8
Butadiyne

: 108-98-5
thiophenol

: 19458-05-0
1-phenylthio-1-buten-3-yne

Conditions

Conditions	Yield
In diethylamine at 20℃; for 2.5h;	100%
In ammonium hydroxide at 5 - 20℃; for 5.5h; Product distribution; other solvents, other reaction temperature, other time;	63%
In methylamine at -25 - 20℃; for 3.5h; Product distribution; other solvents, other reaction time, other temperature;	52%
With potassium hydroxide

: 460-12-8
Butadiyne

: Ni(2+)*4NH3*2CN(1-)=Ni(NH3)4(CN)2

: (NC)Ni(NH3)3CCCCNi(NH3)3(CN)*HCN

Conditions

Conditions	Yield
In ammonia between -15 and +10°C, density of aq.NH3: 0.92-0.96 g/ml;	99%
In ammonia aq. ammonia=NH3; between -15 and +10°C, density of aq.NH3: 0.92-0.96 g/ml;	99%

: 460-12-8
Butadiyne

: 96-27-5
rac-3-sulfanylpropane-1,2-diol

: 78585-12-3, 78585-20-3
1-(2,3-dihydroxypropylthio)-1-buten-3-yne

Conditions

Conditions	Yield
In ammonia at -33℃;	98%

: 1005-59-0
1-morpholinopropane-2-thiol

: 460-12-8
Butadiyne

: N-[2-(but-1-en-3-yn-1-ylsulfanyl)propyl]morpholine

Conditions

Conditions	Yield
With ammonia at -33℃;	97%

: 460-12-8
Butadiyne

: 904681-71-6
trans-(C6F5)(Ph2P(CH2)4O(CH2)2CH=CH2)2PtCl

: 904681-73-8
trans-(C6F5)(Ph2P(CH2)4O(CH2)2CH=CH2)2Pt(CC)2H

Conditions

Conditions	Yield
With HN(C2H5)2; copper(l) iodide In not given Pt complex treated with butadiyne/HNEt2 in the presence of CuI;	97%
With HNEt2; copper(l) iodide In tetrahydrofuran a Schlenk flask was charged with Pt-contg. compd. (0.269 mmol), CuI (0.149 mmol), and HNEt2 with stirring, and cooled to -45°C; then H(CC)2H (15.3 mmol) in THF was added via syringe; after 3 h, the cold bath was removed; after 1 h, solvent was removed by oil pump vac.; the residue was extd. with toluene-ethyl acetate (50:50 v/v); the ext. was chromd. on an alumina column (50:50 hexanes-ethyl acetate); solvent was removed by oil pump vac.; elem. anal.;	97%

Yield

With HN(C2H5)2; copper(l) iodide In not given Pt complex treated with butadiyne/HNEt2 in the presence of CuI;

97%

With HNEt2; copper(l) iodide In tetrahydrofuran a Schlenk flask was charged with Pt-contg. compd. (0.269 mmol), CuI (0.149 mmol), and HNEt2 with stirring, and cooled to -45°C; then H(CC)2H (15.3 mmol) in THF was added via syringe; after 3 h, the cold bath was removed; after 1 h, solvent was removed by oil pump vac.; the residue was extd. with toluene-ethyl acetate (50:50 v/v); the ext. was chromd. on an alumina column (50:50 hexanes-ethyl acetate); solvent was removed by oil pump vac.; elem. anal.;

97%

: 460-12-8
Butadiyne

: 18165-76-9
trimethylsilanyl-methanethiol

: 78585-15-6, 78585-23-6
1-trimethylsilylmethylthio-1-buten-3-yne

Conditions

Conditions	Yield
In ammonia at -33℃;	96%

: 460-12-8
Butadiyne

: 83095-83-4, 14647-25-7
[platinum(II)dichloride(1,2-bis(diphenylphosphino)ethane)]

: 185225-47-2
cis-[Pt(CCCCH)2(1,2-bis(diphenylphosphino)ethane)]

Conditions

Conditions	Yield
copper(l) iodide In tetrahydrofuran; diethylamine; N,N-dimethyl-formamide (N2); CuI and soln. of diyne in THF were added sequentially to soln. of Pt complex in DMF/NHEt2; mixt. was stirred for 15 min; solvent removed (vac.); residue stirred with water; washed (water; methanol; Et2O); extd. (CH2Cl2); concd.; filtered through celite into stirredhexane; filtered; washed (cold hexane); dried in air; elem. anal.;	96%
With diethylamine; copper(l) iodide In tetrahydrofuran byproducts: (H2NEt2)Cl;	94%

Yield

copper(l) iodide In tetrahydrofuran; diethylamine; N,N-dimethyl-formamide (N2); CuI and soln. of diyne in THF were added sequentially to soln. of Pt complex in DMF/NHEt2; mixt. was stirred for 15 min; solvent removed (vac.); residue stirred with water; washed (water; methanol; Et2O); extd. (CH2Cl2); concd.; filtered through celite into stirredhexane; filtered; washed (cold hexane); dried in air; elem. anal.;

96%

With diethylamine; copper(l) iodide In tetrahydrofuran byproducts: (H2NEt2)Cl;

94%

: 460-12-8
Butadiyne

: bis(triphenylphosphine)iminium gold(I) bis(acetylide)

: 443304-52-7
P(C6H5)3NP(C6H5)3(1+)*Au(C4H)2(1-)=P(C6H5)3NP(C6H5)3Au(C4H)2

Conditions

Conditions	Yield
In tetrahydrofuran; dichloromethane; diethylamine soln. of ligand in THF was added to soln. of Au-complex in NHEt2-CH2Cl2,stirred at room temp. for 1 h under N2; solvent was removed, filtered, extd. with CH2Cl2, cold Et2O was added; elem. anal.;	96%

: 460-12-8
Butadiyne

: 147-93-3
Thiosalicylic acid

: 81157-25-7
1-o-carboxyphenylthio-1-buten-3-yne

Conditions

Conditions	Yield
In ammonia at -33℃; for 5h;	95%

: 460-12-8
Butadiyne

: 60-24-2
2-hydroxyethanethiol

: 858256-58-3
1-(2-hydroxyethylthio)-1-buten-3-yne

Conditions

Conditions	Yield
In ammonia at -33℃;	95%

: 460-12-8
Butadiyne

: 90667-70-2
dichloro{bis(dicyclohexylphosphino)ethane}platinum(II)

: 218797-17-2
1,2-bis(dicyclohexylphosphino)ethane platinum dibutadiyne

Conditions

Conditions	Yield
copper(l) iodide In diethyl ether; diethylamine bubbling butadiyne into suspn. of Pt-complex (-20°C, 1 h); stirring (room temp., 20 min);	95%

: 460-12-8
Butadiyne

: 59329-00-9
[1,3-bis(diphenylphosphino)propane]dichloroplatinum(II)

: 431047-74-4
cis-[Pt(CCCCH)2(1,3-bis(diphenylphosphino)propane)]

Conditions

Conditions	Yield
With Et2NH; copper(l) iodide In tetrahydrofuran (Ar); CuI was added to suspn. of Pt complex in THF/Et2NH; mixt. was maintained at 0°C; cold soln. of butadyine in THF was added; mixt. was stirred at 0°C for 2 h; solvent removed (vac.); residue dissolved in CH2Cl2; washed (H2O); org. phase dried (MgSO4); filtered; filtrate passed through alumina; solvent removed; crystd. (CH2Cl2/ether); dried (vac.); elem. anal.;	95%
copper(l) iodide In tetrahydrofuran; diethylamine; N,N-dimethyl-formamide (N2); CuI and soln. of diyne in THF were added sequentially to soln. of Pt complex in DMF/NHEt2; mixt. was stirred for 30 min; concd.; H2O added; recrystd. (CH2Cl2/hexane); elem. anal.;	80%

Yield

With Et2NH; copper(l) iodide In tetrahydrofuran (Ar); CuI was added to suspn. of Pt complex in THF/Et2NH; mixt. was maintained at 0°C; cold soln. of butadyine in THF was added; mixt. was stirred at 0°C for 2 h; solvent removed (vac.); residue dissolved in CH2Cl2; washed (H2O); org. phase dried (MgSO4); filtered; filtrate passed through alumina; solvent removed; crystd. (CH2Cl2/ether); dried (vac.); elem. anal.;

95%

80%

: 460-12-8
Butadiyne

: 647012-10-0
trans-(C6F5)(Ph2P(CH2)8CH=CH2)2PtCl

: 945679-65-2
trans-(C6F5)(Ph2P(CH2)8CH=CH2)2Pt(C2)2H

Conditions

Conditions	Yield
With HN(C2H5)2; copper(l) iodide In tetrahydrofuran; dichloromethane diyne, HN(C2H5)2, CuI (cat.);	95%

: 460-12-8
Butadiyne

: 936553-09-2
trans-[(C6F5)(Ph2P(CH2)7CH=CH2)2PtCl]

: 945679-64-1
trans-(C6F5)(Ph2P(CH2)7CH=CH2)2Pt(C2)2H

Conditions

Conditions	Yield
With HN(C2H5)2; copper(l) iodide In tetrahydrofuran; dichloromethane diyne, HN(C2H5)2, CuI (cat.);	95%

: 460-12-8
Butadiyne

: 74867-46-2
1-[(2S)-oxiran-2-yl]-(1S)-octan-1-ol

: 187095-42-7
(6S,7S)-6,7-dihydroxytetradeca-1,3-diyne

Conditions

Conditions	Yield
With N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium In tetrahydrofuran; hexane at -30℃; for 2h;	94.1%

: 460-12-8
Butadiyne

: 30817-94-8
(mercaptomethyl)trimethoxysilane

: 78585-13-4, 78585-21-4
1-trimethoxysilylmethylthio-1-buten-3-yne

Conditions

Conditions	Yield
In ammonia at -33℃;	94%

: 460-12-8
Butadiyne

: 98-77-1
piperidinium piperidyldithiocarbamate

: 80982-26-9
1-buten-3-ynyl pentamethylenedithiocarbamate

Conditions

Conditions	Yield
In ammonia at -33℃; for 3h;	94%
In tetrahydrofuran at 50℃; for 2h; Product distribution; other solvents, other temperatures, other time, other concentrations;	67%

: 460-12-8
Butadiyne

: 188290-36-0
thiophene

Conditions

Conditions	Yield
With sodium sulfide; potassium hydroxide In dimethyl sulfoxide at 55℃; for 1.25h; diacetylene passed through solution of Na2S and KOH;	94%

: 460-12-8
Butadiyne

: 38788-38-4
dibutyl telluride

: 142025-06-7
(Z)-1-(butyltelluro)but-1-en-3-yne

Conditions

Conditions	Yield
With sodium tetrahydroborate In ethanol for 0.25h; Heating;	93%

: 460-12-8
Butadiyne

: trans-Pt(C6H4Me-p)Cl(triphenylphosphine)2

: 244075-64-7
trans-((C6H5)3P)2Pt(C6H4CH3)(CCCCH)

Conditions

Conditions	Yield
copper(l) iodide In tetrahydrofuran; diethylamine under N2 using Schlenk techniques; (Ph3P)2PtCl(C6H4Me), HNEt2, CuI cooled to -45°C; HCCCCH in THF added; stirred for 1.5 h; after 1 h solvent evapd.; residue extd. (benzene); extracts filtered.; solvent evapd.; EtOH added; ppt. filtered; dried (vac.); elem. anal.;	93%

: 460-12-8
Butadiyne

: 138234-21-6
((i)Pr2PC2H4P(i)Pr2)Pd(C2H4)

: 194996-70-8
(iPr2PCH2CH2PiPr2)Pd(η(2)-HCCCH)

Conditions

Conditions	Yield
In pentane Ar-atmosphere; -30°C; crystn. (-78°C), washing (pentane), drying (vac., -30°C); elem. anal.;	93%

: 460-12-8
Butadiyne

: 7538-45-6
2-mercaptoethyl(trimethoxysilane)

: 344401-12-3
1-trimethoxysilylethylthio-1-buten-3-yne

Conditions

Conditions	Yield
In ammonia at -33℃;	92%

: 460-12-8
Butadiyne

: 1518-58-7
diethylammonium diethyldithiocarbamate

: 80982-31-6
1,4-bis(diethylthiocarbamoylthio)-1,3-butadiene

Conditions

Conditions	Yield
In methanol at 40℃; for 2h;	92%

: 460-12-8
Butadiyne

: 113726-04-8
(bis(diisopropylphosphino)ethane)Ni(COD)

: 113726-05-9
(iPr2PCH2CH2PiPr2)Ni(η(2)-HCCCH)

Conditions

Conditions	Yield
In pentane treatment of solns. of Ni-complex and butadiene (molar ratio 1:1, -78°C), warming (to -30°C), pptn. on cooling (-78°C); washing (cold pentane), drying (-30°C, vacuum); elem. anal.;	92%

: 460-12-8
Butadiyne

: 113747-50-5
(C8H12)Ni((C3H7)2PCH2CH2CH2P(C3H7)2)

: 113726-07-1
(HCCCCH)Ni((C3H7)2PCH2CH2CH2P(C3H7)2)

Conditions

Conditions	Yield
In pentane mixt. of solns. of Ni-complex and butadiyne (molar ratio 1:1, -78°C), warming (to -30°C), pptn.; washing (cold ether), drying (-30°C, vacuum); elem. anal.;	92%

: 460-12-8
Butadiyne

: sodium hexafluoroantimonate

: cis-[RuCl2(dppm)2]

: 4559-79-9
1,4-bis(dimethylamino)but-2-ene

: trans-[Cl(bis(diphenylphosphino)methane)2RuC3(NMe2)CH2CH(CH2NMe2)(CH=CH2)]SbF6

Conditions

Conditions	Yield
In 1,2-dichloro-benzene (Ar); Ru and Sb complexes suspended in o-dichlorobenzene, excess HC4H added, stirred for 45 min, amine added, reacted for 2 d; filtered, evapd. (vac.), stirred with ether and hexanes, dried (vac.); elem. anal.;	92%

...Expand

: 460-12-8
Butadiyne

: 18441-99-1
(triethylsilyl)methanethiol

: 78585-16-7, 78585-24-7
1-triethylsilylmethylthio-1-buten-3-yne

Conditions

Conditions	Yield
In ammonia at -33℃;	91%

: 460-12-8
Butadiyne

: 629-19-6
Dipropyl disulfide

: 1,1,4,4-tetrakis-propylsulfanyl-buta-1,2,3-triene

Conditions

Conditions	Yield
Stage #1: Butadiyne With n-butyllithium In tetrahydrofuran; hexane at -78℃; Stage #2: Dipropyl disulfide In tetrahydrofuran; hexane at 25℃; for 3h;	91%

: 96-54-8
N-Methylpyrrole

: 14104-20-2
silver tetrafluoroborate

: 460-12-8
Butadiyne

: 32993-05-8
chloro(cyclopentadienyl)bis(triphenylphosphine)ruthenium (II)

: Ru(C5H5)(CCC(CH3)(C4H3NCH3))(P(C6H5)3)2(1+)*BF4(1-)=[Ru(C5H5)(CCC(CH3)(C4H3NCH3))(P(C6H5)3)2]BF4

Conditions

Conditions	Yield
In tetrahydrofuran; diethyl ether (N2); addn. of the Ru complex to AgBF4 in THF, filtration into a soln. of buta-1,3-diyne in Et2O and N-methylpyrrole in THF, reacting 15 min; evapn., extn. (CH2Cl2), chromy. (alumina; Et2O/CH2Cl2); elem. anal.;	91%

...Expand

Diacetylene Chemical Properties

IUPAC Name: Buta-1,3-diyne
The MF of Diacetylene (CAS NO.460-12-8) is C₄H₂.

The MW of Diacetylene (CAS NO.460-12-8) is 50.05868.
Synonyms of Diacetylene (CAS NO.460-12-8): 1,3-Butadiin ; 1,3-Butadiyne ; Biacetylene ; Biethynyl ; Butadiyne
Stability: Stability Highly flammable
Index of Refraction: 1.436
Boiling Point: 10.3 °C
Melting Point: -10 °C
Density: 0.806 g/ml
Appearance: gas
EINECS: 207-303-9

Diacetylene Uses

Diacetylene (CAS NO.460-12-8) is used in organic synthesis.This product is an unsaturated aliphatic hydrocarbons, with a simple asphyxiation and weak narcotic effect.

Diacetylene Safety Profile

A dangerous explosive. Polymerizes violently above 0°C. Arsenic pentafluoride catalyzes explosive polymerization. Reaction with silver nitrate forms a very explosive friction-sensitive product. When heated to decomposition it emits acrid smoke and fumes.Safety information of Diacetylene (CAS NO.460-12-8):
RIDADR 3161
HazardClass 2.1

Diacetylene Specification

Diacetylene has been identified in the atmosphere of Titan and in the protoplanetary nebula CRL 618 by its characteristic vibrational modes. The molecule is most likely to have formed in Titan's atmosphere by a reaction between acetylene and the ethynyl radical C₂H, which is produced when acetylene undergoes photolysis. This radical can in turn attack the triple bond in acetylene and react efficiently even at cold temperatures.
Diacetylene, with the formula C₄H₂, is a highly unsaturated hydrocarbon that contains one single bond and two triple bonds. It is the first in the series of polyynes.

Product Name

Diacetylene

Synthetic route

Diacetylene Chemical Properties

Diacetylene Uses

Diacetylene Safety Profile

Diacetylene Specification

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