Chemical product inspection technology

Author: Zhang Zhenyu
Publisher:
Publishing Date: 2005-05-01
Features: This book includes the significance and standardization of chemical product testing, the determination techniques of physical parameters of chemical products, quantitative analysis techniques of chemical products, the testing of impurities and moisture in chemical products, the testing of inorganic chemical products, the testing of organic chemical products, and 12 typical chemical product testing practical projects. Based on current national standards, the book discusses how to apply technical standards to product testing practice and aims to cultivate operational skills through typical chemical product testing practical projects. The book adopts terms, units of measurement, and test methods specified by national standards, and includes sections such as practical requirements, thinking and exercises, interpretation of difficulties, review and tests, making it convenient for readers to self-assess their learning outcomes. This book is intended for vocational industrial analysis, chemical engineering majors, and practical teaching for intermediate and advanced chemical laboratory technicians in the chemical industry. It can also be used as a reference for laboratory personnel in enterprises or commodity inspection departments related to chemical testing, as well as for those engaged in the production and sales of chemical products.
Table of Contents
Table of Contents
Chapter 1 Chemical Product Testing and Its Standardization
Section 1 Significance and Standardization of Chemical Product Testing
1.1 Raw Material Resources and Main Products of the Chemical Industry
1.1.1 The Role of the Chemical Industry in the National Economy
1.1.2 Raw Material Resources of the Chemical Industry
1.1.3 Main Products of the Chemical Industry
Section 2 Significance and Important Roles of Chemical Product Testing
2.1 Chemical Analysis and Testing in Chemical Production
2.2 Chemical Product Testing in Circulation
2.3 Quality Assurance in Analysis and Testing
Section 3 Standardization of Chemical Product Testing
3.1 Significance and Characteristics of Chemical Standardization
3.2 Types and Numbering of Technical Standards in China
3.3 Adoption of International and Advanced Foreign Standards
3.4 Standard Materials and Their Applications
Section 4 Data and Application of Chemical Product Testing
4.1 Chemical Technical Standard Data
4.2 Retrieval of Chemical Technical Standards
4.3 Interpretation and Application of Standard Testing Procedures
Section 5 Procedures and Techniques of Chemical Product Testing
5.1 Sampling of Chemical Products
5.2 Qualitative Identification Techniques
5.3 Physical Parameter Determination Techniques
5.4 Quantitative Analysis Techniques
5.5 Product Quality Grade Determination
Review and Test
Chapter 2 Techniques for Determining Physical Parameters of Chemical Products
Section 1 Determination of Density of Liquid Chemical Products
1.1 Basic Concepts
1.2 Density Bottle Method
1.3 Weighing Balance Method
1.4 Hydrometer Method
Section 2 Determination of Boiling Range of Organic Liquid Products
2.1 Basic Concepts
2.2 Instrument and Apparatus
2.3 Operation
2.4 Correction of Measured Values
2.5 Application Examples
Section 3 Determination of Melting and Crystallization Points of Chemical Products
3.1 Basic Concepts
3.2 Determination of Melting Point
3.3 Determination of Crystallization Point
3.4 Application Examples
Section 4 Determination of Refractive Index of Liquid Chemical Products
4.1 Basic Concepts
4.2 Instrument
4.3 Operation
4.4 Application Examples
Review and Test
Chapter 3 Quantitative Analysis Techniques of Chemical Products
Section 1 Gravimetric Analysis
1.1 Precipitation Gravimetry
1.2 Volatilization Gravimetry
Section 2 Titrimetric Analysis
2.1 Types of Titration Reactions
2.2 Calculations in Titrimetric Analysis
Section 3 Potentiometric Analysis
3.1 Direct Potentiometry for Determining pH of Aqueous Solutions
3.2 Potentiometric Titration for Determining the Endpoint of Titration
Section 4 Absorption Photometric Analysis
4.1 Visual Colorimetry
4.2 Visible Spectrophotometry
4.3 Turbidimetric Analysis
Section 5 Gas Chromatography Analysis
5.1 Principle of the Method
5.2 Instrument and Operation
5.3 Chromatogram and Related Terminology
5.4 Quantitative Analysis Methods
Section 6 Selection and Evaluation of Quantitative Analysis Methods
6.1 Principles for Selecting Quantitative Analysis Methods
6.2 Evaluation of Quantitative Analysis Methods
Review and Test
Chapter 4 Testing of Impurities and Moisture in Chemical Products
Section 1 Determination of Colorimetric Value of Liquid Chemical Products
1.1 Principle
1.2 Instrument and Reagents
1.3 Operation
1.4 Result Presentation
Section 2 Determination of Moisture in Chemical Products
2.1 Drying Method
2.2 Distillation of Organic Solvents
2.3 Karl Fischer Method
2.4 Gas Chromatography Method
Section 3 Determination of Impurity Iron in Chemical Products (o-Phenanthroline Spectrophotometry)
3.1 Principle
3.2 Instrument and Reagents
3.3 Operation
3.4 Discussion
Section 4 Determination of Small Amounts of Chlorides in Inorganic Chemical Products (Silver Titration-Potentiometry)
4.1 Silver Titration-Potentiometry
4.2 Mercury Titration
Section 5 Determination of Micro Amounts of Arsenic in Chemical Products
5.1 Silver Diethyl Dithiocarbamate Spectrophotometry
5.2 Arsenic Spot Method (Gutzeit Method)
Review and Test
Chapter 5 Testing of Inorganic Chemical Products
Section 1 Acids and Bases
1.1 Strong Acids and Strong Bases
1.2 Weak Acids and Weak Bases
Section 2 Inorganic Salts
2.1 Treatment Based on Weak Bases (Weak Acids)
2.2 Quantitative Analysis Based on Metal Ions
2.3 Quantitative Analysis Based on Acid Radicals
Section 3 Elements and Oxides
3.1 Sample Dissolution
3.2 Quantitative Analysis of Components
Review and Test
Practical Project 1 Testing of Industrial Concentrated Nitric Acid
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Nitric Acid Content
5. Determination of Nitrite Content
6. Determination of Sulfuric Acid Content
7. Determination of Residue After Ignition
8. Thinking and Exercises
Practical Project 2 Testing of Industrial Sodium Carbonate
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Total Alkalinity
5. Determination of Loss on Ignition
6. Determination of Chloride Content
7. Determination of Iron Content
8. Determination of Sulfate Content
9. Determination of Insoluble in Water
10. Thinking and Exercises
Practical Project 3 Testing of Industrial Hydrogen Peroxide
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Hydrogen Peroxide Content
5. Determination of Free Acid Content
6. Determination of Non-Volatile Matter
7. Determination of Stability
8. Determination of Total Carbon Content
9. Determination of Nitrate Content
10. Thinking and Exercises
Practical Project 4 Testing of Industrial Magnesium Oxide
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Magnesium Oxide Content
5. Determination of Calcium Oxide Content
6. Determination of Insoluble in Hydrochloric Acid
7. Determination of Sulfate Content
8. Determination of Manganese Content
9. Determination of Other Indicators
10. Thinking and Exercises
Practical Project 5 Testing of Copper Sulfate
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Copper Sulfate Content
5. Determination of Free Sulfuric Acid Content
6. Determination of Insoluble in Water
7. Thinking and Exercises
Practical Project 6 Testing of Bleaching Powder
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Available Chlorine Content
5. Determination of Total Chlorine Content
6. Determination of Free Moisture
7. Determination of Thermal Stability Coefficient
8. Thinking and Exercises
Chapter 6 Testing of Organic Chemical Products
Section 1 Overview
1.1 Application of Titrimetric Analysis
1.2 Application of Gas Chromatography Analysis
Section 2 Unsaturated Compounds
2.1 Overview
2.2 Iodine Addition Method (Weighing Method)
Section 3 Hydroxyl Compounds
3.1 Acetylation Method for Determining Alcohols
3.2 Bromination Method for Determining Phenols
Section 4 Carbonyl Compounds
4.1 Hydrazination Method
4.2 Hydrogen Sulfite Method
Section 5 Carboxylic Acids and Derivatives
5.1 Determination of Acidity of Organic Chemical Products
5.2 Saponification Titration for Determining Esters
Section 6 Amino Compounds
6.1 Overview
6.2 Diazotization Method for Determining Aryl Amines
Review and Test
Practical Project 7 Testing of Industrial Pentaerythritol
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Pentaerythritol Content
5. Determination of Hydroxyl Content
6. Determination of Loss on Heating
7. Determination of Ash Content
8. Determination of Color of Phthalic Anhydride Resin
9. Thinking and Exercises
Practical Project 8 Testing of Industrial Stearic Acid
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Iodine Value
5. Determination of Acid Value
6. Determination of Saponification Value
7. Determination of Color
8. Determination of Melting Point
9. Determination of Moisture
10. Determination of Inorganic Acids
11. Thinking and Exercises
Practical Project 9 Testing of Butyl Acetate
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Colorimetric Value
5. Determination of Density
6. Determination of Acidity
7. Determination of Butyl Acetate and Moisture Content
8. Determination of Residue After Evaporation
9. Thinking and Exercises
Practical Project 10 Testing of Industrial Cyclohexanone
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Appearance and Colorimetric Value
5. Determination of Density
6. Determination of Boiling Range
7. Determination of Moisture Content
8. Determination of Acidity
9. Determination of Refractive Index
10. Determination of Purity
11. Thinking and Exercises
Practical Project 11 Testing of Industrial Ethylbenzene
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Density
5. Determination of Acid-Base (pH) of Water Extraction
6. Determination of Ethylbenzene Purity and Hydrocarbon Impurities
7. Determination of Micro Amounts of Sulfur
8. Thinking and Exercises
Practical Project 12 Testing of Aniline
1. Product Introduction
2. Practical Requirements
3. Qualitative Identification
4. Determination of Melting Point of Dry Product
5. Determination of Aniline Content
6. Determination of Nitrobenzene Content
7. Determination of Moisture Content
8. Thinking and Exercises
Appendix List of National Standards for General Test Methods of Chemical Products
References