The extraction thimble is mainly used to place the substance to be extracted in the glass container below, and then the solution is repeatedly soaked to extract the required components from the substance (such as extracting pesticide residues from peppers). The experimental process is called Soxhlet extract. Another important function of the extraction thimble is to collect particles such as smog in the atmosphere, which is used in conjunction with the haze collection device.
Classification
According to the material of the product, Hawach extraction thimbles can be divided into two types: cellulose extraction thimbles, and glass fiber extraction thimbles. The extraction thimble and filter paper are relatively similar from material to function. The cellulose extraction thimble is today’s focus and to know cellulose extraction thimble is to learn the features of cellulose well.
Features
Made of selected raw materials, accurate monitoring size, high-quality reproduction;
Applications: determination of fat in food and feed;
Analysis of pollutants and residues in the environment;
Inspection of incoming components of natural products;
Polymer determination in the polymer industry.
Characteristics of cellulose
Cellulose is a macromolecular polysaccharide composed of glucose, insoluble in water and general organic solvents, which is the main component of plant cell walls. Cellulose is the most abundant natural organic matter in the world, accounting for more than 50% of the carbon content of the plant kingdom.
The cellulose content of cotton is close to 100%, which is a natural source of pure cellulose. In general wood, cellulose accounts for 40-50%, and there are 10-30% hemicellulose and 20-30% lignin. In addition, hemp, wheat straw, rice straw, bagasse, etc. are all rich sources of cellulose. Cellulose is an important raw material for papermaking. In addition, cellulose-based products are also widely used in plastics, electrical engineering, and scientific research equipment. The cellulose in food (ie dietary fiber) also plays an important role in human health.
Cellulose is insoluble in water and organic solvents such as E alcohol and E ether and is soluble in copper ammonia Cu(NH3)4(OH)2 solution and copper E diamine [NH2CH2CH2NH2]Cu(OH)2 solution. Water can cause limited swelling of cellulose, and some aqueous solutions of acids, alkalis, and salts can penetrate into the crystalline area of the fiber to produce infinite swelling and dissolve the cellulose.
The cellulose does not change significantly when heated to about 150°C. If the temperature is exceeded, it will gradually coke due to dehydration. Cellulose hydrolyzes with concentrated inorganic acid to generate glucose, etc., reacts with a concentrated caustic solution to generate alkali cellulose, and reacts with strong oxidant to generate oxidized cellulose.
HAWACH extraction thimbles in Soxhlet extraction
Cellulose extraction thimbles are the Soxhlet extraction sample pool for quality control, scientific research, and analysis. HAWACH extraction thimbles can perform solid and semi-solid solvent extraction easily and conveniently, safely, and reliably; all HAWACH extraction thimbles are of high quality and are suitable for Soxhlet extractors and automatic extraction equipment of all well-known manufacturers.
HAWACH cellulose extraction thimbles are featured by excellent retention ability and mechanical strength, high porosity, high fitting accuracy, various sizes, consistent wall thickness, and smooth interior surface, etc. Welcome to visit hawach.com to learn more.
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