1、Vinyl acetate
Vinyl acetate (CAS 108-05-4) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.
2、Does Vinyl Acetate Lack a Melting Point?
2、What is the boiling point and melting point of vinyl acetate? Vinyl acetate contains vinyl and acetate groups in the molecule, and this structure makes the interaction between molecules weak, resulting in a decrease in the melting point.
3、Chemistry — Vinyl Acetate Council
Chemical Name: Vinyl Acetate Synonyms: Vinyl Ester Acetic Acid, Ethenyl Ester, Vinyl Acetate Monomer, VAM, Ethenyl Acetate CAS Number: 108-05-4 Molecular formula: CH3COOCH=CH2 Molecular weight: 86.09 g/mol Density: 0.934 g/cm3 Boiling point: 72.7°C Melting point: -93°C
4、Vinyl Acetate
Explore a comprehensive list of vinyl acetate properties in both SI and US customary units at normal temperature and pressure (NTP).
5、The Melting and Boiling Points of Vinyl Acetate
2、What is the boiling point and melting point of vinyl acetate? This article will introduce the boiling point and melting point of vinyl acetate in detail, and analyze the importance of these two physical properties in the chemical industry.
Vinyl acetate
Melting Point -93,2 °c. Boiling point 72.2 °c. Flash point (Open Cup)-1 °c. Refractive index 1.3953. Miscible with ethanol, soluble in ether, acetone, chloroform, carbon tetrachloride and other organic solvents, insoluble in water. Easy to polymerize.
What is the boiling point and melting point of vinyl acetate?
Vinyl acetate contains vinyl and acetate groups in the molecule, and this structure makes the interaction between molecules weak, resulting in a decrease in the melting point.
Vinyl Acetate
1. Product Identification Product Name: Vinyl Acetate Chemical Name: Ethenyl acetate Molecular Formula: C₄H₆O₂ Molecular Weight: 86.09 g/mol EC Number: 203-545-4 Appearance: Colorless, flammable liquid Odor: Sweet, fruity odor
Vinyl Acetate
Melting point: mp -100°; mp -93° (Daniels) Boiling point: bp 72.7° Flash point: Flash pt, closed cup: 18°F (-8°C) Density: d420 0.932
Vinyl Acetate
It tends to have a solubility of approximately 1.2 g/100 mL at room temperature. Temperature Effects: The solubility can be affected by temperature changes, generally increasing with higher temperatures.
In the vast realm of chemistry, changes in the physical state of substances are fundamental properties. Among these, melting and boiling points serve as critical indicators for understanding a substance’s behavior and reaction mechanisms. a recurring question arises: Does vinyl acetate (C₃H₆O₂) possess a melting point? To address this, we explore multiple perspectives and uncover the scientific principles behind it.
1. Definition and Properties
Vinyl acetate, an organic compound belonging to the ester family, is chemically represented as C₃H₆O₂. It typically exists as a solid but can transition to liquid or gaseous states under specific conditions. This reversible phase change suggests that vinyl acetate does not form a single crystalline structure at room temperature; instead, it may exhibit polymorphism (multiple crystalline forms).
2. Concept of Melting Point
The melting point refers to the temperature at which a substance transitions from a solid to a liquid. For most pure substances, this value is fixed and remains consistent regardless of external conditions.
3. Melting Point of Vinyl Acetate
Contrary to common assumptions, there is no direct literature confirming a fixed melting point for vinyl acetate. This ambiguity likely stems from its ability to form distinct crystalline polymorphs under varying conditions. For instance, at low temperatures, it may adopt an alpha (α) polymorph with a lower melting point, while at higher temperatures, it could shift to a beta (β) polymorph, resulting in a higher melting point.
4. Experimental Methods
To determine vinyl acetate’s melting point, scientists employ techniques like Differential Scanning Calorimetry (DSC), which measures heat flow during phase transitions. DSC allows researchers to analyze the melting curve of vinyl acetate and infer its melting point.
5. Experimental Results
Existing data reveal a broad melting range for vinyl acetate, spanning approximately -78°C to -108°C. This variability indicates that its physical state depends heavily on environmental conditions.
While vinyl acetate is often misconceived as lacking a melting point, modern experimental methods demonstrate that its melting behavior is not fixed. The compound exhibits polymorphism, with different crystalline forms corresponding to distinct melting points. Thus, it cannot be simplified as a substance without a melting point.
7. Future Research Directions
To deepen our understanding of vinyl acetate’s melting point and its variability, future studies could focus on:
- Advanced experimental techniques: Improving precision and reproducibility in melting-point measurements.
- Theoretical modeling: Developing thermodynamic models to explain the thermal properties of its polymorphs.
- Environmental impact: Investigating how factors like temperature, pressure, and humidity influence its melting behavior in practical applications.
vinyl acetate is far from a simple compound without a melting point. Exploring its nuanced physical properties under diverse conditions holds significant implications for fields like chemical engineering and materials science.
