𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Discussion on the determination of lead in the presence of iron (this J., 1909, 639)

✍ Scribed by Wilkie, J. M.

Publisher
Wiley (John Wiley & Sons)
Year
1910
Weight
429 KB
Volume
29
Category
Article
ISSN
0368-4075

No coin nor oath required. For personal study only.

✦ Synopsis

__

is impossible. 111 tho casu of aiiy iiionobasic organic wid tho salt niay Lo noutral (norunl), aoid, or alkaline. hi tho fiist caso tho ituiouut of acid liborated 011 lroatinont witJi noutral forinnldoliytlo is an nccurdo iticwuromciit of t h o atnuonin. If tho salt is acid tho rcsult obtainod \rill bo too high, for both tho frcu and conibiiiod acid will bo roturucd ns aiunionin.

πŸ“œ SIMILAR VOLUMES

THE COLORIMETRIC DETERMINATION OF LEAD I
THE COLORIMETRIC DETERMINATION OF LEAD IN THE PRESENCE OF IRON WITH SOME NOTES ON THE PREPARATION OF LEAD FREE REAGENTS BY COPRECIPITION WITH FERRIC HYDROXIDE
✍ Wilkie, John M. πŸ“‚ Article πŸ“… 1909 πŸ› Wiley (John Wiley & Sons) βš– 418 KB πŸ‘ 1 views

Forbcnfnbriken ninnufacturcd at present tlircc different sizes of mctcrs, for pipe3 witti n diaiiictcr from 60, 100, and 150 111111., wliicli could be used for nny sizc of piping witliout nflccting tlic nccurncy of tlic mctcr. Tlic priccs wcrc about tho snnic as tlioso of otlicr nictcrs obtniiinblc

Discussion on a β€œrapid and accurate meth
Discussion on a β€œrapid and accurate method for the determination of carbon in iron and its alloys”
✍ Szasz, Ernst πŸ“‚ Article πŸ“… 1915 πŸ› Wiley (John Wiley & Sons) βš– 266 KB πŸ‘ 1 views

When caustic sodn is added to : L solution of n 6itanous salt, black titanoiis hydroside is precipitated, I n i t this begins to dcconiposc alinost at once, yielding nnscent liydrogcn and tlie white titanic hydroside, probably according to the following cqiintions :-

Acute and Chronic Toxicity of Veratrum V
Acute and Chronic Toxicity of Veratrum Viride††The Veratrum viride studied was the whole-powdered drug marketed by Irwin, Neisler & Co. under the name, Vertavis. The work reported herein was supported by a grant from this firm. The batch of powder used in these experiments was stated by the manufacturer to have been assayed biologically by the Craw method on Daphnia magna. One Craw unit of the material studied was stated to be 15.6mg. With regard to this assay, Mr. R. O. Craw has been so kind as to allow us to publish a brief explanation: A reference lot of Yerolrum oirid; powder was set-aside as a standard and a 10% w/v aqueous extract was made of this powder. The average median length of life in 50 assays of 1000 daphnia on immersion in the solution was determined to be 2.22 hours. The daphnia were considered dead when the heart was found to be in systolic standstill on microscopic examination. Succeeding lots of powder were assayed and their potency determined by relating the median length of life of daphnia to 2.22 hours, which is one unit. Twenty assays of 10 animals each were used on each lot of powder.‑‑The authors wish to thank Dr. J. F. A.,McManus of the Department of Pathology for a pathologic report on the tissues, and Mr. James Thomas and Mrs. Bobby E. Teague for technical assistance.
✍ Perdue, Adoline S. ;Bell, Frances ;Starnes, W.R. ;Hitchcock, Philip ;Teague, R.S πŸ“‚ Article πŸ“… 1950 πŸ› Elsevier βš– 346 KB πŸ‘ 1 views