𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Sir Frank E. Smith, K.C.B., F.R.S.


Publisher
Wiley (John Wiley & Sons)
Year
1933
Weight
136 KB
Volume
52
Category
Article
ISSN
0368-4075

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✦ Synopsis


CIlElllISl'RY AND INDUSTRY

29 its first introc1uctfion as n commercial product. iinininl pancrcnscs forth tltc raw nintcrial, n.liich is dclivcred fresh to the fnct,ory and immcdintcly frozcn. It is then ground to n fine state and carricd to apparatus in which cstraction with nlcohol is' effected. After trciitxncnt with various rcngcnts thc cstrnct is adjrtstcd to tlic riglit dcgrcc of ricirlity, filtcrcd, ccntrifagctl, nntl driccl in low-t,cinpcratiirc viicitiiin iippiirrttiis, tlic fin:il product Lcing n piire white powder with n strcngtli of 20 units per inilligrrini, t h t is, ten tinics thc potmcy of Biinting's originiil ntntcrinl. Evcry 13.D.l-I. product must pass rigid tcsts before it IC:IVCS the factory, r~ucl in the


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