1、Development of a Purity Certified Reference Material for Vinyl Acetate

In this paper, while using the mass balance method to determine the purity of vinyl acetate, an improved method was established for the determination of the content of three impurities in vinyl acetate reference material, and the GC-FID peak area normalization for vinyl acetate was calibrated.

2、D5594 Standard Test Method for Determination of the Vinyl Acetate

1.1 This test method covers infrared procedures for determining the vinyl acetate content of EVA copolymers using pressed films (Procedure A) or molded plaques (Procedure B) and internal corrections for sample thickness.

3、Measurement of vinyl acetate monomer in consumer products and modeled

Vinyl acetate monomer (VAM) (CAS 108-05-4) is employed in the creation of an array of polymers and copolymers used in the manufacture of consumer products.

4、Vinyl Acetate Testing

Vinyl acetate testing is a crucial process in various industrial sectors to ensure the quality and safety of products. This testing method evaluates the presence and concentration of vinyl acetate, which is commonly used in the production of adhesives, coatings, and plastics.

5、SH/T 1628.3

SH/T 1628.3-1996 English Version, SH/T 1628.3-1996 Determination for activity degree of industrial vinyl acetate - Foaming method (English Version) - Code of China

Development of a Purity Certified Reference Material for Vinyl Acetate

In this paper, while using the mass balance method to determine the purity of vinyl acetate, an improved method was established for the determination of the content of three impurities in vinyl acetate reference material, and the GC-FID peak area normalization for vinyl acetate was calibrated.

Measurement of vinyl acetate monomer in consumer products and

Vinyl acetate monomer (VAM), also known as acetic acid ethenyl ester (CAS 108-05-4), is used in the creation of an array of polymers and copolymers.

ANALYTICAL METHODS

The purpose of this chapter is to describe the analytical methods that are available for detecting and/or measuring and monitoring vinyl acetate in environmental media and in biological samples.

Direct determination of vinyl acetate content of ethylene

An infrared spectroscopic method was developed for the determination of vinyl acetate content in thick films of ethylene-vinyl acetate copolymers. The A 3460 /A 3610 ratio was used for the quantitative analysis.

Laboratory Test: Detection of Residual Vinyl Acetate Monomer in Poly

LCS Laboratory provides precise analysis of Poly Vinyl Acetate (PVAc) for traces of residual Vinyl Acetate monomer. This testing is essential to verify compliance with industry safety standards and to maintain the quality of your polymer products.

Vinyl acetate, as an important organic compound, exhibits diverse chemical properties and broad application fields. To thoroughly understand its characteristics and industrial applications, mastering its activity degree testing methods is crucial. This article provides a detailed introduction to the process and scientific significance of vinyl acetate activity degree testing.

I. Chemical Properties of Vinyl Acetate

Vinyl acetate is a colorless or pale yellow liquid with a distinct odor. It is synthesized through the addition reaction of acetic acid and ethylene under catalytic conditions, belonging to the class of conjugated diene compounds. At room temperature, it remains in a liquid state with a relatively high boiling point, typically volatilizing at around 150°C. Due to the presence of an unsaturated double bond in its molecular structure, vinyl acetate demonstrates high chemical reactivity and can participate in various polymerization reactions.

II. Scientific Definition of Activity Degree

In the field of chemistry, "activity degree" is a key parameter for measuring the reactivity of a substance. For vinyl acetate, activity degree refers to its capacity to undergo chemical reactions under specific conditions. Specifically, a higher activity degree indicates greater ease of reaction with other substances, while a lower degree signifies reduced reactivity. This concept plays a significant role in industrial applications, particularly in the synthesis of new materials and optimization of production processes.

III. Methods for Testing Vinyl Acetate Activity Degree

1. Standard Solution Method

The standard solution method is a widely used technique for determining vinyl acetate activity. It involves adding a known concentration of standard solution to the vinyl acetate sample and observing color changes before and after the reaction. The relative activity degree is calculated based on the extent of color alteration.

2. Titration Method

Titration involves introducing a reagent of known concentration into the vinyl acetate sample until the reaction is complete. The volume of reagent consumed is then used to calculate the relative activity degree. This method requires precise control of reaction conditions to ensure accuracy.

3. Chromatographic Analysis Method

Chromatographic analysis separates components in the vinyl acetate sample by exploiting differences in their distribution between stationary and mobile phases. Signal intensities detected by chromatographic instruments are analyzed to determine the relative activity degree.

IV. Significance of Vinyl Acetate Activity Degree Testing

Testing the activity degree of vinyl acetate holds both scientific and industrial importance. In research, it aids in revealing reaction characteristics under different conditions, providing foundational data for theoretical studies. In industrial settings, understanding activity degrees helps optimize production processes, improve product quality, reduce energy consumption, and maximize economic benefits.

testing the activity degree of vinyl acetate is indispensable in chemical research and applications. Methods such as the standard solution, titration, and chromatographic analysis offer reliable means to measure activity degrees, serving as critical references for scientific and industrial advancements. With technological progress, these testing methods are expected to evolve further, contributing even more significantly to the field of chemistry.