Titanium dioxide content measurement method
A technology of titanium dioxide and test method, which is applied in the preparation of test samples and the measurement of color/spectral properties, etc., can solve problems such as difficulty in testing titanium dioxide, and achieve the effect of complete digestion
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0040] A kind of titanium dioxide content test method
[0041] The sample is: phosphorus-based flame-retardant polyester chips
[0042] The test includes the following steps: (the purity of the reagents used are all analytical grades; the solutions used (%) are expressed as mass fractions; the laboratory water should meet the specifications of third-grade water in GB / T6682).
[0043] 1. Solution preparation
[0044] 1.1 Sulfuric acid solution (5mol / L): Pour 280ml of concentrated sulfuric acid into 1L of water, mix well and cool to room temperature.
[0045] 1.2 Hydrogen peroxide solution (3%): inject 30ml of concentrated hydrogen peroxide into 100ml of water, and mix well.
[0046] 1.3 Mixed acid: Add 300ml of concentrated hydrochloric acid and 100ml of concentrated nitric acid to 450ml of water and mix well.
[0047] 1.4 Ascorbic acid solution (100g / L): Weigh 25g of ascorbic acid and dissolve it in 250mL of water.
[0048] 1.5 Titanium standard working solution (1mg / mL): ...
Embodiment 2
[0065] A method for testing titanium dioxide content as described in Example 1, the difference is that the sample is a far-infrared polyester DTY filament. Test steps 1 and 2 are the same, and step 3 starts as follows:
[0066] 3.1 Polyester DTY filament generally has an oil content higher than 2%. It needs to be degreased with soap solution and then dried. The filament sample should be cut into a line segment with a length of about 1cm.
[0067] 3.2 Accurately weigh two samples of far-infrared polyester DTY filaments that have been processed and cut into line segments, the masses are: M 1 = 0.2302 grams, M 2 =0.2467 g, in a 250 mL Erlenmeyer flask, add 10 mL of 98% concentrated sulfuric acid and 5 mL of 30% hydrogen peroxide, and mix well. Place the Erlenmeyer flask on a temperature-controlled electric heating plate in a fume hood, slowly heat until the solution boils, and continue to heat for 10 minutes. When it is almost room temperature, add 5-8g of ammonium sulfate and ...
Embodiment 3
[0076] A titanium dioxide content test method as described in Example 1, the difference is that the sample is a luminous polyester masterbatch. 3.1 of test step 1, step 2, and step 3 are the same, and step 3.2 starts as follows:
[0077] 3.2 Accurately weigh two samples of luminous polyester masterbatch that have been processed into pieces, the masses are: M 1 = 0.2555 grams, M 2=0.2470 g, in a 250 mL Erlenmeyer flask, add 10 mL of 98% concentrated sulfuric acid and 5 mL of 30% hydrogen peroxide, and mix well. Place the Erlenmeyer flask on a temperature-controlled electric heating plate in a fume hood, slowly heat until the solution boils, and continue to heat for 10 minutes. When it is almost room temperature, add 5-8g of ammonium sulfate and continue to heat and digest. If the solution does not decolorize, You can add 5mL of 30% hydrogen peroxide in batches and cook until the solution becomes colorless and transparent. When there is a small amount of white smoke, take it o...
PUM
Property | Measurement | Unit |
---|---|---|
length | aaaaa | aaaaa |
concentration | aaaaa | aaaaa |
absorbance | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com