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| bleaching clay; bleaching clay Clay capable of chemically adsorbing oils, insecticides, alkaloids, vitamins, carbohydrates and other materials; it is used for refining and decolorizing mineral and vegetable oils | |||
| filter clay | |||
| bentonite; fullers' earth | |||
| bleekaarde: 4 phrases in 3 subjects |
| Coal | 2 |
| Environment | 1 |
| General | 1 |