Jeweler’s rouge

Jeweler s borax, see Sodium tetraborate 10-water Jeweler s rouge, see Iron(III) oxide... 

Jet-laced nonwovens Jet mills Jet mixers Jet printing Jet spray Jeweler s rouge... 

Carborundum is rjsed mainly for fast work when much glass needs to be removed, and for grinding quartz. It is cheaper and harder than emery. It can be graded by particle size the coarsest normally used is 90 mesh. The medium size is about 180 mesh, and the fine about 300 mesh, with very fine of 600 and 900 mesh this last is usually unnecessary since better results can be obtained with jeweller s rouge. Carborundum is also often graded in F numbers F consists of 240 mesh and finer 2F of 280 and finer and 3F of 320 mesh and finer. Carborundum is used in the same way as emery, and has the advantage that carborundum wheels and blocks can be obtained. 

Corundum or alumina is again faster than emery, but it is much more expensive. Finally, diamond powder can be twed, and is very fast but by far the most expensive. Once the glass has been ground it can be polished with jeweller s rouge or Cerirouge (see p. 83). With these polishes an optical finish may be obtained. 

Jeweller s rouge, 40 Joints between two big tubes, 93,100 Joints between two similar tubes, 60, 100... 

Jet spray, 28 183 Jeweler s rouge, 1 1 Jewelry. See also Gemstones electroplating, 9 767 gold, 12 691, 701... 

The initial polishing is done to get better adhesion. Decorative articles are polished with a buffing wheel with an abrasive compound such as jeweler s rouge (FejOj) on it. For industrial applications where good adhesion is needed, the surface must be roughened much more. This is done by using a compressed air blast of sand or aluminum oxide on iron and steel or ground walnut shells on brass and bronze. 

JEWELER S ROUGE (1309-37-1) Violent reactions with powdered aluminum (thermite reaction), hydrogen peroxide, calcium disilicide (thermite reaction), ethylene oxide (may cause explosive polymerization), calcium hypochlorite, hydrazine, hydrogen trisulfide, powdered magnesium. Incompatible with powdered calcium carbide, carbon monoxide, chlorides, guanidinium perchlorate, metal acetylides. Contact with the explosive hydrazinium diperchlorate or ammonium perchlorate can be made more heal-, shock-, or friction-sensitive. Incompatible with aluminum-magnesium-zinc alloys. 

Ferric Oxide. Ferric sesquioxide jeweler s rouge. Fe203 mol wt 159.70. Fe 69.94%, O 30.06%. a-Form occurs in nature as the mineral hematite, v-Form occurs in nature as the mineral maghemite prepd by dehydration of a -FeO(OH) Giovanoli, Briitsch, Chimia 28, 188 (1974). 

Ferric Oxid—Sesquioxid or peroxid of iron—Colcothar—Jeweller s rouge—Venetian red—FejOa—159.8—occurs in nature (see above and is formed when ferrous sulfate is strongly heated, as in the manufacture of pyrosulfuric acid. It is a reddish, Amorphous solid, is a weak base, and is decomposed at a white heat into O and Pes04. 

RED BURNT SIENNA BURNT UMBER CALCOTONERED COLCOTHAR COLLOIDAL FERRIC OXIDE FERRIC OXIDE INDIAN RED IRON(in) OXIDE IRON OXIDE RED IRON SESQUIOXIDE JEWELER S ROUGE MARS BROWN MARS RED NATURAL IRON OXIDES NATURAL RED OXIDE OCHRE PRUSSIAN BROWN RED IRON OXIDE RED OCHRE ROUGE RUBIGO SIENNA SYNTHETIC IRON OXIDE VENETIAN RED VITRIOL RED YELLOW OXIDE OF IRON... 

Synonyms jasmine flower sweet jasmine oil Jeweler s Rouge... 

Fe Oj is a source of iron in an ore called hematite. The compound is used to polish glass, precious metals, and diamonds. Hence another of its names is jeweler s rouge. 

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