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Cas Database |
| Name |
Lithium acetylide |
EINECS | N/A |
| CAS No. | 1070-75-3 | Density | g/cm3 |
| PSA | 0.00000 | LogP | 0.38760 |
| Solubility | N/A | Melting Point |
N/A |
| Formula | C2Li2 | Boiling Point | °Cat760mmHg |
| Molecular Weight | 37.904 | Flash Point | °C |
| Transport Information | N/A | Appearance | N/A |
| Safety | Ignites and burns vigorously in fluorine, chlorine, phosphorus, selenium, or sulfur vapors. Ignites when heated in bromine or iodine vapors. When heated to decomposition it emits acrid smoke and fumes. See also LITHIUM COMPOUNDS and ACETYLIDES. | Risk Codes | N/A |
| Molecular Structure |
|
Hazard Symbols | N/A |
| Synonyms |
Dilithioacetylene;Dilithium acetylide; Dilithium carbide; Lithium acetylide; Lithium carbide(Li2(C2)) |
Article Data | 12 |
Lithium acetylide Synthetic route
- 109-72-8, 29786-93-4
n-butyllithium
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
A
- 149529-74-8
N-(α-methylbenzyl)pentylamine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: n-butyllithium; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine at 20℃; Stage #2: With methanol | A 80% B n/a |
- 188290-36-0
thiophene
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: thiophene; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine With lithium diisopropyl amide In diethyl ether at 0 - 20℃; Stage #2: With methanol | A 78% B n/a |
- 554-14-3
2-Methylthiophene
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: 2-Methylthiophene; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine With lithium diisopropyl amide In diethyl ether at 0 - 20℃; Stage #2: With methanol | A 77% B n/a |
- 109-72-8, 29786-93-4
n-butyllithium
A
- 149529-74-8
N-(α-methylbenzyl)pentylamine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: n-butyllithium; N-(α-methylbenzyl)-3-(trimethylsilyl)-2-propynylamine at 20℃; Stage #2: With methanol | A 71% B n/a |
- 109-72-8, 29786-93-4
n-butyllithium
- 18292-76-7
N-(prop-2-yn-1-yl)cyclohexanamine
A
- 35152-42-2
N,N-cyclohexyl-n-pentylamine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: n-butyllithium; N-(prop-2-yn-1-yl)cyclohexanamine at 20℃; Stage #2: With methanol | A 70% B n/a |
- 56-23-5
tetrachloromethane
- 7439-93-2
lithium
B
- 38827-81-5
ethenetetrayl-tetrakis-lithium
C
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| In neat (no solvent) reaction of an excess of gaseous Li with gaseous CCl4 at 800-1000°C (high vac.);; | A 10-18 B 61% C 20% |
| Conditions | Yield |
|---|---|
| Stage #1: furan; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine With lithium diisopropyl amide In diethyl ether at 0 - 20℃; Stage #2: With methanol | A 58% B n/a |
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
- 594-19-4
tert.-butyl lithium
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine; tert.-butyl lithium at 20℃; Stage #2: With methanol | A 50% B n/a |
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
- 591-51-5
phenyllithium
A
- 3193-62-2, 17480-69-2, 19302-20-6, 38235-77-7
N-benzyl-1-phenylethylamine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine; phenyllithium at 20℃; Stage #2: With methanol | A 39% B n/a |
- 2786-07-4
2-thienyl lithium
- 56862-34-1
N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine
B
- 1070-75-3
dilithium acetylide
| Conditions | Yield |
|---|---|
| Stage #1: 2-thienyl lithium; N-(1-phenylethyl)-N-(prop-2-yn-1-yl)amine at 20℃; Stage #2: With methanol | A 38% B n/a |
Lithium acetylide Chemical Properties
IUPAC: Dilithium acetylide
Lithium acetylide with CAS NO.of 1070-75-3 is also called for EINECS 213-980-1 ; CID66115 ; 1070-75-3 ; 1,2-Dilithioacetylene ; Dilithioacetylene ; Ethyne-1,2-diylbislithium ; Ethynylenebislithium and so on.
CAS: 1070-75-3
Molecular Formula: C2Li2
Molecular Weight: 37.9034
EINECS: 213-980-1
ACD/LogP: 0.37
ACD/LogD (pH 5.5): 0.37
ACD/LogD (pH 7.4): 0.37
ACD/BCF (pH 5.5): 1.13
ACD/BCF (pH 7.4): 1.13
ACD/KOC (pH 5.5): 37.87
ACD/KOC (pH 7.4): 37.87
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 0
Heavy Atom Count: 4
Formal Charge: 0
Complexity: 12
Isotope Atom Count: 0
Defined Atom StereoCenter Count: 0
Undefined Atom StereoCenter Count: 0
Defined Bond StereoCenter Count: 0
Undefined Bond StereoCenter Count: 0
Covalently-Bonded Unit Count: 3
Enthalpy of Vaporization: 21.12 kJ/mol
Vapour Pressure: 69700 mmHg at 25°C
Density: 1.3 g/cm3
Melting Point: > 550°C
The molecular structure of Lithium acetylide with CAS NO.of 1070-75-3:
Lithium acetylide Uses
Lithium acetylide (CAS NO.1070-75-3) can be used in radiocarbon dating.
Lithium acetylide Production
Lithium acetylide (CAS NO.1070-75-3) can be prepared from the following two ways：
1.molten lithium + graphite are reacted at high temperature
2.carbon dioxide + molten lithium
Lithium acetylide Safety Profile
Ignites and burns vigorously in fluorine, chlorine, phosphorus, selenium, or sulfur vapors. Ignites when heated in bromine or iodine vapors. When heated to decomposition it emits acrid smoke and fumes. See also LITHIUM COMPOUNDS and ACETYLIDES.
Lithium acetylide Specification
Lithium acetylide with CAS NO.of 1070-75-3 is an ionic salt, it will transform reversibly to a cubic anti-fluorite structure at high temperatures.
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