Celite 545, Size 20–40 Micrometer
Product Description
Celite 545, Size 20–40 Micrometer, is a laboratory filtration aid used in suitable filtration, sample preparation, and solid–liquid separation procedures. It is a diatomaceous earth-based material known for its porous structure, which can help separate suspended particles from liquids during appropriate laboratory and industrial processes.
The specified particle size of 20–40 micrometers is an important characteristic when selecting a filtration material for a particular application. Filtration performance depends on the sample composition, particle concentration, filtration equipment, and operating conditions. Therefore, users should select the product according to their laboratory requirements and established procedures.
Product Specifications
- Product Name: Celite 545
- Particle Size: 20–40 Micrometer
- Product Code: 82523
- CAS Number: 91053-39-3
- Available Pack Sizes: 500gm and 1kg
- Brand: Please confirm from the product label.
Applications of Celite 545
1. Laboratory Filtration
Celite 545 can be used as a filter aid in suitable laboratory procedures to assist in separating suspended solids from liquids. Filter aids may help improve filtration when samples contain fine particles or are difficult to filter directly.
2. Sample Preparation
Sample preparation is an essential step in many analytical and research workflows. This material may be used in appropriate procedures where clarification or solid–liquid separation is required before further analysis. Compatibility should be checked against the relevant method.
3. Chemical Processing
Filtration materials are used in chemical processing to separate unwanted particulate matter from liquid mixtures. Celite 545 may be suitable for processes requiring a diatomaceous earth-based filtration aid, depending on the sample and process conditions.
4. Research and Educational Laboratories
Research institutions, universities, and laboratory facilities may use filtration aids in experiments and sample-processing procedures. The material should be selected according to the experimental requirements and applicable laboratory protocols.
5. Separation Procedures
Solid–liquid separation is important in many laboratory operations. Celite 545 may support suitable separation procedures when recommended by the relevant method. Its suitability for a specific application should be verified before use.
Importance of Particle Size
The 20–40 micrometer particle-size specification helps users identify the required material for their filtration procedure. Particle size may affect flow rate, filtration behaviour, and the retention of suspended particles. However, actual results also depend on the sample, filter medium, pressure, and equipment used.
Handling and Storage
Handle Celite 545 according to the product label and Safety Data Sheet (SDS). Avoid generating or inhaling dust, use appropriate personal protective equipment, and work with suitable ventilation. Keep the container closed when not in use and follow the recommended storage conditions. Do not use the material for specialised applications unless its grade and documentation confirm suitability.
Buy Celite 545 in Bangladesh
Bright Scientific supplies laboratory chemicals and scientific materials for educational institutions, research laboratories, and industrial customers in Bangladesh. Contact Bright Scientific to enquire about the current price, availability, and quotation for Celite 545, Size 20–40 Micrometer.
Before ordering, confirm the required pack size and check that the product specifications meet your intended laboratory application.

Frequently Asked Questions (FAQ)
1. What is Celite 545?
Celite 545 is a diatomaceous earth-based material used as a filter aid in suitable laboratory and processing applications.
2. What is the particle size?
The specified particle size is 20–40 micrometers.
3. What is the CAS Number?
The listed CAS Number is 91053-39-3.
4. What is the product code?
The product code is 82523.
5. Which pack sizes are available?
The listed pack sizes are 500gm and 1kg. Confirm current availability before ordering.
6. What is Celite 545 used for?
It may be used for laboratory filtration, sample preparation, and suitable solid–liquid separation procedures.
7. Is it suitable for every filtration application?
No. Suitability depends on the sample, filtration equipment, and the requirements of the procedure.
8. How should it be handled?
Follow the product label and SDS, avoid dust inhalation, and use appropriate protective equipment.
9. Where can I buy Celite 545 in Bangladesh?
Contact Bright Scientific for pricing, availability, and quotation information.
10. Why is particle size important?
Particle size can influence filtration performance, so the specified range should match the requirements of the intended procedure.







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