Quality issues with anhydrous aluminum trichloride products
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This post was last edited by Yu Qin on 2021-2-26 07:15. Recently, I came into contact with a plant that produces aluminum trichloride, and I’ve been struggling with quality issues. First, regarding the raw material chlorine, what are the key technical specifications required? Upon seeing the produced product, its appearance was grayish rather than pure golden yellow, and it was considered to have unsatisfactory visual quality. The appearance improved significantly after switching to a different gas source. However, no significant differences were found when comparing the existing standard chlorine detection parameters of the suppliers. So which other indicators have not been addressed or controlled? Second, what are the main quality inspection indicators for aluminum trichloride products? Is the appearance color particularly important? It appears gray in color – what impurities could be causing that? Is it still caused by different crystals? I have friends who are familiar with this industry, both inside and outside it; thank you for any advice you can offer: handshake
I’ll take care of it myself;P Refer to the standard GB/T3959-2008 \"Industrial anhydrous aluminum trichloride\" – in clause 4.1, Appearance: This product appears as light yellow, yellow, or slightly grayish particles or powder, and there should be no lumps larger than 10 mm.
By standard, a slight gray tint is also considered a normal acceptable product. Why does it have to be yellow? Is it because pale yellow and yellow come before slightly gray, or is it that slightly gray is hard to define?
The key aspect of product quality should still be whether its components meet the required standards; however, it was found that for anhydrous aluminum trichloride, only the color is taken into consideration
I’m not sure what standards and specifications are used by those who produce aluminum trichloride products to determine the quality of these products. I’d like to learn about this: handshake
Apart from the national standards for such phenomena, are there more detailed and comprehensive evaluation criteria in the industry? Won’t it be determined by some unwritten conventions within the industry? Of course, this phenomenon also occurs during buyer-dominated markets; P
Should the standards be revised? P