Oldest Notre Dame College Building Now Headquarters for Missionaries
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.#>^r*'^'% F You are Always a Guest Here Before You are a Customer Home of Famous Names in Men's Quality Clothing Hickey-Freeman ... Society Brand ... Burberry .. ,"GGG"... Alpagora... British-R... Dobbs GILBERT'S 813-817 S. Midiigan St. SOUTH BEND'S LARGEST STORE 'FOR MEN LETTERS ^ Unsigned letters wiU not be printed, but name will be withheld on request. Sir: Now why did you have to go and get intellectual all of a sudden with that "Humanist" column? Don't you know the average college boy here at ND is just along for the ride? Can't we keep the SCHOLASTIC on a happy-little-collegiate- moron level like all the other college publications in the country? Us old vets don't want to be bothered about things like leadership; all we want is our sack and the latest copy of Cap tain Marvel. This trjang to make Chris tian lay-crusaders out of 4000 morally- timid souls is a big job. "The Humanist" is asking for an Atlas-sized assignment; they'll soon despair and fold, then we can have more space for pin-ups. Archie McBitters For cynical, satirical Archie Mc Bitters, et al, loe are serioiisly con- sidenng running a comic strip.— Editor. • Sir: An article in the SCIIOL.-VSTIC, issue of February 7, 1947, announced the meth ods of issuing Army football tickets to students and Alumni. The article re quested that students refrain from writ ing to the athletic department concerning the Army game. I am to graduate in August of 1947. At the time application blanks will be mailed (prior to July 1, 1947 for Alumni) • I will be a student. But at the time stu dents will receive their tickets I will be an alumnus. Will Aug. graduates have an opportunity to purchase tickets? Do you believe in THRIFT? James E. Padesky 236 Howard Hall "I'm a regular Scotsman for thrift. I never throw away anything that I No plan has yet been set up to can use again. provide Army game tickets for Aii- "Every year I salvage millions and millions of pounds of metal from what gust graduates, but James E. Arm you might call junk. strong, national alumni secretary, "I collect all the old telephone equipment, wire and cable no longer useful ^ said that details tvill be tvorked out to the Bell System ... and all the machine scrap, turnings and rejected parts ivith the Ticket Office and the re sults sliould be knoivn ivithin the from the factories where I make Bell Telephone equipment. next tveek.—Editor. "I turn this scrap metal into bars and billets of refined metals and alloys • out of which I make new telephone equipment. Sir: "I salvage rubber, tCKtiles and paper, too . tnd anything I can't use Somehow your SCHOLASTIC enrollment again, I sell. Nothing is wasted. ^ story (otherwise good) underrates the "My thriftiness, as supply unit of the Bell System, is one reason why you " College of Arts and Letters by approxi get telephone service ... the world's best... at the lowest possible cost. mately 154 students. This is the number "Remember my name. It's Western Electric." of students in the Physical Education • department, which is part of the College of Arts and Letters,, although separately administered by Dr. Scannell. ^ Making the Arts and Letters total 1227 will also make your published totals for Western Electric I, all the colleges add up to approximately* •j the figure . - . you give . 4,665. A UNIT OF THE BELL ^ SYSTEM SINCE 1882 y' Louis Hasley, Assistant Dean Dn Items of Interest to Students of Chemistry, Engineering; Pliysics,: and Biology; • >• ^ •-.«• ^ -t_v^. The "Whitest of White" Pigments from Black Ore It is a strange fact that the ninth most To attain this end in prevalent element in the earth's crust a metastable system should have been regarded as "rare" that is ready to go in for over a hundred years after its dis the wrong direction covery in 1791. But that is the story at any time requires of titanium, actually more abundant exceedingly rigid than zinc, copper, lead, tin, and nickel control conditions combined. One of the factors that have throughout. kept titanium &om being better known The essential steps is the difficulty of handling some of its in the operation are: compounds commercially. 1) The careful solu If, as a student, you were to look up bilization of ilmenite the equations for the manufacture of in concentrated sul titanium oxide pigment, you might find furic acid to avoid something like this: hydrolysis. 2) The complete reduction of FeTiOa. nFejOs* + (3n + 3)H2SO,—^ Ti(S04)2 + FeS04 + nFe2{S04)3 + (3n + 3)H20 any ferric iron to fa cilitate purification of Fe2(S04)3 + 2H* >.2FeS04 + H2SO4 the solution, with re Ti(S04)2 + (x+2)H20—>Ti02 JcHjO + 2H2SO4 moval of any uncon Ti02JiH20—^Ti02 + XH2O verted residue and *—The exact composition of ilmenite colloidal slimes. 3) varies with the source of the ore. Crystallization of 70 From these equations, the manufac per cent of the iron as FeS04.7H20— llmenila (left). THanium Dioxide (right). Ap- ture of the "whitest of white" pigments a critical operation in which tempera potatus in Hi* background is a rotary filler. from black ilmenite ore appears to be ture must be kept low and wild seed chemically simple and straightforward. crystals avoided. 4) Hydrolysis around this work. Finally the metallurgist, the However, the processing required to 105-109° C.—the most important step chemical engineer, the mechanical en obtain industrial titanium oxide of of all—because the initial particle size gineer, and the industrial engineer had sufficient brightness, hiding power and and pigment properties of the final to design equipment to handle this ex fineness is more complicated than one product depend on concentration, tem- tremely corrosive system economically. would anticipate. j)erature, time of hydrolysis, intensity The manufacture of titanium pig of stirring, and presence of foreign ma Controlling a Meffostable System ments is another example of the prob terials. In this operation it is not un lems that constantly challenge chem The final product must have a particle usual to talk in terms of parts per mil ists, engineers and other specialists. size averaging 0.2 microns in radius and lion, rather than the usual analytical varying between 0.1 and 0.5 microns. accuracy of 0.01-0.02 per cent. 5) Vary ing salt treatment of the precipitate, M 1 1 1 1 1 1 1 11 M 1 II 1 1 1 1 1 1 1 1 1 1 1 1 depending on the impurities. 6) Cal For the Answers to 1 1 1 1 1 i i i 1 11 1 1 1 . 1 1 1 1 1 1 . 1 cination between 900-1000° C. to obtain PARTICLE SIZE DISTRIBUTION OF THPURE'TITANIUM OXIDES Questions College Men ask t 1 ' 1 .1 > 1 1 1 1 1 > 1 I 1 < 1 1 1 1 1 1 the desired particle size. 7) Grinding to t : ' 1 < 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 give the proper aggregate size. 8) Treat t pi, 1\ t I 1 1 1 1 1 1 1 ' 1 1 1 1 1 1 about working with Du Pont 1 1 1 / 1 \ \ \t 1 CUI!VEn)R.200RUIIir ment of the dried pigment in various 1 ii>*ii 1 BUMEL GRADE TiO. ways depending on end use; e.g., in the 1 III 1 E III 1 automotive, rubber, ceramics, paper, III 1 I Write for your copy of II .•. linoleum, printing, or other fields. •4 1 V - CURVE (3) FF ANATASE TiO, cq-iW Vl "THE DU PONT COMPANY 1 i;l 1 •! AND THE » Vutile oni Anotow or« ~ Wide Diversity of Research Problems 1 !«l a. • n 1 ''•• 1 oyitalEne modificohoni of T!02 COLLEGE GRADUATE" l!= i - Long and patient research was neces il; 1/ 1 1 1 t sary to develop the manufacturing tech ilj / 1 1 1 1 2521 Nemours Building K OrT*f i 1 1 1 niques now used. Some of the problems g 1 1 1 i Wilmington 98, Delaware -St 1 1 k *• -flb 1 i demanded technical skill of the highest -32^ 1 1 1 1 3] --U 1 1 1 I order from the colloid chemist, the phys if li 1 1 1 1 ical chemist, the analyst, the crystal- £9 ~Tt 1 1 1 1 m ""in 1 1 1 1 lographer, the physicist, and other spe J 1 1 1 1 X 1 i i cially trained men. A wide variety of T _j J 1 1 fi' ~T r * \l 1 1 I instruments, such as the petrographic Ji 1 \ NJ 1 J f/i 1 1 IN, 1 microscope, the electron microscope, ,H ^ 1 ', '*- "ES.U.S.PAT.OFf. 1 N. r-L x-ray difiEraction unit, ultra-centrifiige, £1 ' jfl and spectrophotometer were used in 03 04 OS BETTER THINGS FOR BETTER LIVING UDIUS IN MICHMSOFINDIVIDUM. PMITICUS OF T.Ot ...THKOUGH CHBMISTKY More facts about Du Pont—Listen to "Cavalcade of America," Mondays, 7 P.M. CST, on NBC I. L OU rONT DE NEMOUBS ft CO. (INC.) WILMINGTON 9«, OELAWAIB - VIOLETS ARE BLUE AND SO ARE YOU... For Notre Dame Men By BIU LEAVEY The Notre Dame Today here at Notre Dame as well as percalia occuring on Februajy 14th. On throughout the western world the mail this day the names of all the eligible Scapular Medal man's load was considerably heavier than young women were put in a box from usual.