✦ LIBER ✦

Atomic weight of erbium

✍ Scribed by J.S.H.

Book ID: 104127323
Publisher: Elsevier Science
Year: 1928
Tongue: English
Weight: 57 KB
Volume: 205
Category: Article
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(28)91371-x

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✦ Synopsis

prepared erbium chloride from gadolinite. They then determined the ratio of erbium chloride to silver in a series of six analyses, and obtained an average value of 167.64 for the atomic weight of erbium.

J.S.H.

Synthetic Thyroxln.--Thyroxin is the hormone, or specific secretion, of the thyroid gland. It governs the basal metabolism or basal heat production of the animal body. Harrington and Barger (Biochemical J., 1927, 2z, 169-181) have synthesized thyroxin and determined its constitution. They report that thyroxin is beta-J3 : 5-diiodo-4-(3' : 5'-diiodo-4' hydroxyphenoxyl) phenyl]-alpha-aminopropionic acid. J.S.H.

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