Study of determination of free formaldehyde content in inflated pearlite
WANG Lei
MENG Fei
HUANG Jin-li
Abstract：Free formaldehyde content in inflated pearlite of a certain brand is determined by acetyl acetone spectrophotometry and the result shows that the product's property achieved inflated pearlite China standard (GB18583-2001).The research finds that the best side length is 1.0cm when dealing with the sample product; the optimum extraction temperature is 40 ℃ and the time is 60min when using distilled water as the extractant. In the recovery experiment of sample added to the formaldehyde standard solution and the sample solution, the average recovery ranges from 93.14% to 96.35% and the result is effective.
Keywords：inflated pearlitefree formaldehydedeterminationacetyl acetone
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 67-70 )