Quality identification method for lead powder of lead-acid storage battery raw material
The technology of a lead-acid battery and an identification method is applied in the field of quality identification of lead powder, a raw material of the lead-acid battery, and achieves the effects of simple processing process, simple method and fewer types of chemical reagents.
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[0011] Embodiment: determine according to the following specific steps
[0012] 1. Take the lead powders from five manufacturers and the lead powders produced by the known 1# electrolytic lead as references, and the numbers are A, B, C, D, E, F respectively; take 150g of lead powders and place them in a 1000mL beaker, add 500mL sulfuric acid solution with a mass concentration of 5% is stirred, heated and boiled, the lead powder is dissolved, cooled, and the liquid is poured; add 500mL of a sulfuric acid solution with a mass concentration of 5%, stirred, heated and boiled, the lead precipitated in the lead powder forms a lump, cooled; take out For lead lumps, wash off the sulfuric acid on the surface with pure water, and quickly absorb the water on the surface of the lead lumps with filter paper;
[0013] 2. Put 30 grams of dry lead mass into a clean porcelain crucible, cover it, put it into a muffle furnace heated to 400°C in advance, seal it for 10 minutes, clamp the crucible...
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