scholarly journals ELEMENTARY MANUAL FOR THE CHEMICAL LABORATORY.

1904 ◽  
Vol 26 (12) ◽  
pp. 1655-1655
Author(s):  
L. B. Hall
Keyword(s):  
Chemical Laboratory

On the Thermo-electric Properties of Solid and Liquid Mercury

1902 ◽  
Vol 23 ◽  
pp. 15-15 ◽  
Author(s):  
W. Peddie ◽  
A. B. Shand
Keyword(s):  
Carbonic Acid ◽  
Large Mass ◽  
Electric Properties ◽  
Considerable Time ◽  
Chemical Laboratory ◽  
Thermo Electric ◽  
Liquid Mercury ◽  
Usual Manner ◽  
Solid Form ◽  
The University

AbstractBy means of a large quantity of solid carbonic acid, obtained from the University Chemical Laboratory, it was found possible to solidify, and maintain in the solid form for a considerable time, a large mass of mercury. Preliminary experiments made about a year ago, in the usual manner, by means of a triple circuit (iron, german silver, mercury), did not give results of a satisfactory kind. This was apparently due to the difficulty of maintaining steady, or steadily varying, temperatures.

Chemical laboratory consolidation project

2017 ◽  
Vol 24 (3) ◽  
pp. 38-43 ◽  
Author(s):  
Yamaira I. Gonzalez ◽  
Mariah D. Woodroof ◽  
Yushan S. Yan ◽  
Weihua Deng ◽  
Michael A. Gladle
Keyword(s):  
Chemical Laboratory

RADIATION PROTECTION IN DIAGNOSTIC RADIOGRAPHY OF CHILDREN

PEDIATRICS ◽  
1973 ◽  
Vol 51 (1) ◽  
pp. 141-144
Author(s):  
Herman Grossman ◽  
Donald H. Altman ◽  
David H. Baker ◽  
John L. Gwinn ◽  
John A. Kirkpatrick ◽  
...  
Keyword(s):  
Radiation Safety ◽  
Pediatric Population ◽  
Technical Information ◽  
Pediatric Radiologist ◽  
Potential Hazard ◽  
General Philosophy ◽  
Chemical Laboratory ◽  
The Past ◽  
Laboratory Investigations ◽  
Diagnostic Radiography

As is readily apparent, the problem of reducing radiation exposure to the pediatric patient encompasses many areas. In the past, more attention has been devoted to the concrete aspects such as refined radiographic equipment and gonadal shielding. Less attention has been devoted to the abstract aspects which involve the general philosophy and disposition of the referring physician and his radiologic consultant. In this regard, it cannot be overstated that close communication with the radiologist is mandatory. The (pediatric) radiologist is constantly aware of the aspects of radiation safety and utilizes this information when he obtains radiographic examinations. There is a tendency to treat radiographic examinations in the same context as clinical and chemical laboratory investigations. Perhaps this attitude stems from the fact that radiographs are often ordered at the same time as these laboratory tests. Such an orientation is dangerous, and it behooves the referring physician and the radiologist to work in cooperation to remedy this situation. Indeed, it is simple to improve radiographic equipment and not too difficult to shield the child; but, it is difficult to formulate a proper attitude regarding radiographic examinations and their potential hazard to the pediatric population. The Committee on Radiology plans to prepare additional recommendations on radiographic examinations to provide more detailed and technical information which should be helpful to pediatricians and other physicians providing care for children.

Penanganan Alat Dan Bahan Yang Baik Dalam Rangka Menunjang Kegiatan Di Laboratorium Kimia

METANA ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 58
Author(s):  
Raharjo Raharjo ◽  
Sri Harjanto
Keyword(s):  
Chemistry Laboratory ◽  
Laboratory Equipment ◽  
Chemical Laboratory ◽  
Laboratory Environment ◽  
Handling System ◽  
Research Activities

Fasilitas alat dan bahan di lingkungan laboratorium kimia bagi mahasiswa yang sedang menyelesaikan tugas penelitian merupakan suatu hal yang tidak bisa terpisahkan, dan sangat diperlukan keberadaanya. Maka  sistem kelola, cara penanganan dengan  baik dan benar terutama  yang berhubungan dengan bahan kimia ataupun alat gelas dan instrumen mulai dari proses pengadaan, penerimaan , pengemasan, penyimpanan sampai penyaluran, penggunaan sesuai dengan tata kelola yang baik dan benar, juga ditunjang pelayanan yang memadai akan sangat membantu dalam rangka penyelesaian kegiatan penelitian mahasiswa Tugas Akhir di laboratorium kimia. Handling of good equipments and materials to order to supply activities studensts at the chemical laboratory  Equipment and materials facilities in chemical laboratory environment for students who are completing research tasks is an inseparable, and indispensable condition. Therefore, good and proper handling system, especially those related to chemicals or glassware and instruments starting from the procurement, receiving, packaging, storage until distribution, use in accordance with good and correct governance, also supported by adequate services will very helpful in the completion of research activities of Final Final students in the chemistry laboratory.

Accidental and Intentional Red Glaze on Athenian Vases

1951 ◽  
Vol 46 ◽  
pp. 143-150 ◽  
Author(s):  
Gisela M. A. Richter
Keyword(s):  
Chemical Laboratory ◽  
Greek Vases ◽  
Series Of Experiments

Professor Wace's many distinguished contributions to archaeology have been in a variety of fields. In all, however, he has kept an eye on the technical side of the problem, which so often illuminates our research. I, therefore, offer this investigation in his honour.After Mr. Charles F. Binns had in 1929 published his theory of the firing of Athenian vases successively under oxidising, reducing, and re-oxidising conditions it became clear that the glaze on Greek vases turned red or black according to the conditions of the firing. This theory has recently been endorsed and amplified by Mr. Theodor Schumann, a ceramic chemist, who, at the instigation of the well-known archaeologist Mr. Carl Weickert, conducted during the war a series of experiments in the chemical laboratory of the Schütte Akt. Ges. für Tonindustrie in Heisterholz, Westphalia, and at long last successfully imitated the Attic black glaze. Like Binns, he used as the only ingredients for the glaze a clay that contained iron—i.e. red-burning—and a small quantity of alkali (potash or soda). His important new contribution was the peptising of the clay, whereby he eliminated the heavier particles. By using only the fluid made of the smaller and therefore lighter particles of the clay, he obtained a glaze of remarkable thinness, equal in quality and appearance to the Attic one.

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