Phenylacetylene
Synthesis- Product Name
- Phenylacetylene
- CAS No.
- 536-74-3
- Chemical Name
- Phenylacetylene
- Synonyms
- Ethynylbenzene;Phenylethyne;phenylacetylide;1-Phenylethyne;Benzene, ethynyl-;Phenylacetylene, pure, 98%;ethyne,phenyl-;Ethynylbenaene;ethynyl-benzen;Ethinylbenzene
- CBNumber
- CB9853753
- Molecular Formula
- C8H6
- Formula Weight
- 102.13
- MOL File
- 536-74-3.mol
Phenylacetylene Property
- Melting point:
- -44.8 °C
- Boiling point:
- 142-144 °C (lit.)
- Density
- 0.93 g/mL at 25 °C (lit.)
- vapor pressure
- 17.6 mm Hg ( 37.7 °C)
- refractive index
- n20/D 1.549(lit.)
- Flash point:
- 88 °F
- storage temp.
- Store at +2°C to +8°C.
- solubility
- H2O: insoluble
- pka
- 19(at 25℃)
- form
- Liquid
- color
- Clear colorless to yellow
- Specific Gravity
- 0.930
- Water Solubility
- INSOLUBLE
- Sensitive
- Light Sensitive
- Merck
- 14,3861
- BRN
- 605461
- Dielectric constant
- 3.0（20℃）
- Stability:
- Stable. Flammable. Incompatible with strong oxidizing agents, acids, halogens.
- CAS DataBase Reference
- 536-74-3(CAS DataBase Reference)
- NIST Chemistry Reference
- Phenylacetylene(536-74-3)
- EPA Substance Registry System
- Phenylacetylene (536-74-3)
Safety
- Hazard Codes
- Xn
- Risk Statements
- 10-36/37/38-40-65-36/37
- Safety Statements
- 16-26-36/37/39-45-62-36/37
- RIDADR
- UN 3295 3/PG 3
- WGK Germany
- 1
- RTECS
- DA0780000
- F
- 8-19
- TSCA
- Y
- HS Code
- 2902 90 00
- HazardClass
- 3
- PackingGroup
- III
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H226Flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H350May cause cancer
- Precautionary statements
-
P202Do not handle until all safety precautions have been read and understood.
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233Keep container tightly closed.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313IF exposed or concerned: Get medical advice/attention.
N-Bromosuccinimide Price
- Product number
- 8.07044
- Product name
- Phenylacetylene
- Purity
- for synthesis
- Packaging
- 25ML
- Price
- $45.6
- Updated
- 2024/03/01
- Product number
- 8.07044
- Product name
- Phenylacetylene
- Purity
- for synthesis
- Packaging
- 100ML
- Price
- $158
- Updated
- 2024/03/01
- Product number
- 117706
- Product name
- Phenylacetylene
- Purity
- 98%
- Packaging
- 25ml
- Price
- $52.8
- Updated
- 2024/03/01
- Product number
- 117706
- Product name
- Phenylacetylene
- Purity
- 98%
- Packaging
- 100ml
- Price
- $162
- Updated
- 2024/03/01
- Product number
- E0196
- Product name
- Ethynylbenzene
- Purity
- >98.0%(GC)
- Packaging
- 25mL
- Price
- $50
- Updated
- 2024/03/01
Phenylacetylene Chemical Properties,Usage,Production
Synthesis
It is suitable for the synthesis of Terminal Alkynes by the reaction of substituted benzaldehyde with alkali. 2-bromovinyl benzene can be obtained by reacting 2,3-dibromo-3-phenylpropionic acid with base and triethylamine in DMF, and then it can be directly reacted with potassium hydroxide to obtain the desired product Phenylacetylene.
Description
Phenylacetylene is an alkyne hydrocarbon containing a phenyl group. It exists as a colorless, viscous liquid. In research, it is sometimes used as an analog for acetylene; being a liquid, it is easier to handle than acetylene gas.
Phenylacetylene undergoes polymerization catalyzed by Rh and Pt complexes to form polyphenylacetylene.
Chemical Properties
colourless liquid
Uses
Ethynylbenzene, an aromatic hydrocarbon, is important in the petrochemical industry as an intermediate in the production of styrene, which in turn is used for making polystyrene, a common plastic mate rial.
Uses
Phenylacetylene is involved in the preparation of styrene by reduction using Lindlar catalyst. It is used to study the mechanism of the palladium-catalyzed phenyl acetylene oxidative carbonylation reaction. It is also used in the polymerization process to prepare polyphenylacetylene namely 1,2,4-triphenylbenzene and 1,3,5-triphenylbenzene.
Uses
Terminal acetylene used in the conversion of nitrones to alkynyl hydroxyl amines in the presence of trimethylaluminum..
Application
Terminal acetylene used in the conversion of nitrones to alkynyl hydroxyl amines in the presence of trimethylaluminum.
Phenylacetylene was used in a study to investigate the mechanism of product formation during the palladium-catalysed phenylacetylene oxidative carbonylation reaction.
Definition
ChEBI: Ethynylbenzene is a member of benzenes.
Synthesis Reference(s)
Journal of the American Chemical Society, 89, p. 4487, 1967 DOI: 10.1021/ja00993a043
General Description
Phenylacetylene undergoes polymerization catalyzed by Rh and Pt complexes to form polyphenylacetylene.
Flammability and Explosibility
Flammable
Purification Methods
Distil phenylacetylene through a spinning band column. It should be filtered through a short column of alumina before use [Collman et al. J Am Chem Soc 108 2988 1986; for pK see Brandsma Preparative Acetylenic Chemistry, 1st Edn Elsevier 1971, p. 15, ISBN 0444409475]. [Beilstein 5 IV 1525.]
Precautions
Store in cool place. Moisture sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with acids, halogens, alkali metals and oxidizing agents.
Phenylacetylene Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Phenylacetylene manufacturers
- Product
- Phenylacetylene 536-74-3 Ethynylbenzene 536-74-3
- Price
- US $9.95/KG
- Min. Order
- 1KG
- Purity
- 99.50% IN STOCK
- Supply Ability
- 500 MT per month
- Release date
- 2019-09-03
- Product
- 536-74-3 Phenylacetylene 536-74-3
- Price
- US $15.50/KG
- Min. Order
- 1KG
- Purity
- 99.50% IN STOCK
- Supply Ability
- 500 MT per month
- Release date
- 2019-09-03
- Product
- Phenylacetylene 536-74-3
- Price
- US $6.55/KG
- Min. Order
- 1KG
- Purity
- 99.50% IN STOCK
- Supply Ability
- 680 MT per month
- Release date
- 2019-09-03