Industrial difluorodichloromethane (F12) (2)

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The sample is vaporized and bubbled into distilled water to absorb acidic substances.

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Figure 1 Grinding Erlenmeyer Flask

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Figure 2 Absorption bottle

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Add 100ml of distilled water to the four absorption flasks, connect them in series with a tube, and connect the ground-mouth Erlenmeyer flask in front of the first one

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Unplug the Erlenmeyer flask from the socket, weigh out about 100g of the sample that is cooled to non-boiling (accurate to 1g), immediately connect it in place, and place it to evaporate naturally.

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Acidity X (%) (calculated by HCI) is calculated according to formula (1);

In the formula: V ₁ -the amount of sodium hydroxide standard solution consumed by the sample, ml;

V ₀ —The amount of sodium hydroxide standard solution consumed in the blank test, ml;

m—the mass of the sample, g;

c(NaOH)—The concentration of sodium hydroxide standard solution, mol/L;

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0365-the number of grams per millimole of HC1
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Related Links: Industrial Difluorodichloromethane (F12) (1)