Knowledge of Filter Papers
Filter paper has excellent filtration property and strong absorption performance on liquid. Scientific workers use filter paper as a kind of media in analytical laboratories to separate solution from solid. Currently, there are mainly three kinds of filter papers which can be purchased in domestic market: quantitative filter papers, qualitative filter papers, and chromatography qualitative filter paper.
During the manufacturing processes of quantitative filter paper, the pulp is processed by hydrochloric acid and hydrofluoric acid. After washed by distilled water, most of the impurities inside the paper fiber can be filtered so that the filter paper is fit for precise quantitative analysis.
Types of Filter Paper
Domestic produced quantitative analysis filter paper falls into three types: fast speed, medium speed, and low speed. They are marked with a blue belt (fast speed), white belt (medium speed) and red belt (low speed) respectively. Commonly, there are two shapes of filter papers you find in the market: round and square. The former one is always with the diameter of 9 cm to 18 cm, while the latter one is with the dimension of 60 cm x 60cm and 30 cm x 30 cm.
General Notes of Using Filter Paper
1. Make use of natural filtration to separate the liquid from solid.
2. Considering of low mechanical strength and tenacity of filter paper, make sure of using less suction filtration.
3. It is better not to filter hot concentrated sulfuric acid or hot concentrated nitric acid through filter paper.
Contact : Bruce Lu, +86 29 89284429
Good deal: buying from seller
We invite you to read our terms of use. You can also visit our FAQ section and see our information section on the risks associated with counterfeiting.
|
This page is about importers and exporters of Knowledge of Filter Papers Search in a category : Everything else / Bulk Search in a category : filter, papers, knowledge |
Tuesday, February 16, 2016
Quantity : 5000MT - Price : 450 USD / MT CIF
Inhibit tumor growth and improve disease resistance; Powerful anti-oxidant which extends life, and improves the memory; Neutralize the side effects of chemotherapy and radiation; Normalize blood pressure & balance blood sugar Lower cholesterol, lose weight. Support eye health...
KHUN JACK PARTNERSHIP LIMITED
- 50000 - CHIANG MAI
- +66 9 56 19 49 81
Tuesday, December 09, 2025
Dual Piston Volumatical Filling Machine FP425. available for working independently on each system. Cylinder Volume can be customized based on customer's requirement. FEATURES: - Filling volume can be customized based on customer's requirement - Each piston system can be set independently...
Autopack Co.,Ltd
- autopacker
- 33454 - Taoyuan City
- +88 6 33 68 98 06
Saturday, July 11, 2015
Quantity : 1 - Price : $3,429.00
Truly affordable. Remarkably versatile. With the VersaStudio, we've taken everything that makes a Roland printer great and packed it into one powerful, profit-producing package. Award-winning mild solvent inks. Your choice of media. One device that can print and cut an incredible...
Asia Toner Inc
- 12950 - Jakarta
- 6281361223405





