... protection, etc, for example: adipic acid, AH-salt, amino-acid ester, ammonium persulphate, ammonium phosphate, ammonia sulfate, ammonium thiosulfate, anthracene, aspirin ... , salt cake, metal methyl cellulose, amido-cyclo-alkane sulfonic acid ester, smashed walnut, nylon slice, oxalic acid, polymethacrylate, polyvinyl alcohol, potash ...