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硫酸亞铁在湿空气中易氧化变黄(生成高铁)。有人認为本品对胃粘膜有刺激性,主張制成腸溶片。現將制造本片的操作經驗介紹于后,一般腸溶片也可参考本法制造。一、制粒取通过24目篩的結晶硫酸亞鉄顆粒300公斤,篩入滑石粉9公斤及硬脂酸細粉3公斤,混匀,再过14目篩一次后直接压片。每片片重0.312克。
Ferrous sulphate tends to oxidize and turn yellow (generate high iron) in humid air. Some people think that this product is irritating to the gastric mucosa and advocates making into enteric-coated tablets. Now that the operating experience of manufacturing the tablet is introduced, general enteric coated tablets can also be manufactured by reference to this method. First, the granulation takes 300 kg of crystalline barium sulphate particles passing through a 24 mesh sieve, and sieves 9 kg of talcum powder and 3 kg of stearic acid fine powder, mixes them, and then sieves them through 14 mesh and then directly compresses the tablets. Each piece weighs 0.312 grams.