Fillings for

It is prepared by the direct nitration of toluene with a mixture of nitric and sulphuric acids. TNT is a very stable, violent and powerful high explosive, but less sensitive to shock and friction than picric acid. It is widely used as a filling for shells, bombs, etc. often mixed with ammonium nitrate and other high explosives. The lower grades of TNT may contain isomers which under hot storage conditions may give rise to exudation. 

The formula is fair for cases, when volume of metal is most less than volume of filling. For example, the volume of uranium makes up a few percents from volume of graphite in uranium - graphite fuel element and Wo 80 %. 

A procedure that is more suitable for obtaining the actual distribution of pore sizes involves the use of a nonwetting liquid such as mercury—the contact angle on glass being about 140° (Table X-2) (but note Ref. 31). If all pores are equally accessible, only those will be filled for which... 

The metal is slowly oxidised by air at its boiling point, to give red mercury(II) oxide it is attacked by the halogens (which cannoi therefore be collected over mercury) and by nitric acid. (The reactivity of mercury towards acids is further considered on pp. 436, 438.) It forms amalgams—liquid or solid—with many other metals these find uses as reducing agents (for example with sodium, zinc) and as dental fillings (for example with silver, tin or copper). 

A very effective universal filling for vacuum desiccators is obtained by having concentrated sulphuric acid C in the bottom of the desiccator, and flake sodium hydroxide D in the inverted glass collar supported on the shoulders of the desiccator, the collar then being covered... 

DeodoriZation. Removal of volatile odorous material and residual fatty acids is the final step ki ok processkig prior to packagkig or filling for bulk shipment (28). The ok is heated to 230—260°C under vacuum. Steam is passed through the ok to assist ki carrying over the volatile material. 

Fillers. Micronized carbonate whiting is the preferred mineral fill for putty and caulking compounds based on linseed oil or plastic, and vinyl-based floor coverings. It comprises 20—60% of the raw material mix (see Fillers). 

Dental amalgams, mainly silver—tin—mercury alloys, have been used as fillings for many years (see Dental MATERIALS). The most common alloy contains 12 wt % tin. 

A solution of sulfur trioxide [7446-11-9] dissolved in chlorosulfonic acid [7990-94-5] CISO H, has been used as a smoke (U.S. designation FS) but it is not a U.S. standard agent (see Chlorosulfuric acid Sulfuric acid and sulfur trioxide). When FS is atomized in air, the sulfur trioxide evaporates from the small droplets and reacts with atmospheric moisture to form sulfuric acid vapor. This vapor condenses into minute droplets that form a dense white cloud. FS produces its effect almost instantaneously upon mechanical atomization into the atmosphere, except at very low temperatures. At such temperatures, the small amount of moisture normally present in the atmosphere, requires that FS be thermally generated with the addition of steam to be effective. FS can be used as a fill for artillery and mortar shells and bombs and can be effectively dispersed from low performance aircraft spray tanks. FS is both corrosive and toxic in the presence of moisture, which imposes limitations on its storage, handling, and use. 

S When the cake is disposed as land fill for spreading with a bulldozer provided it is hard enough to carry its weight... 

In Figure 1(b) we have plotted the negative of anti-phase boundary energy e = — ( as a function of band filling for Pd Vi- with x = 0.25, 0.5 and 0.75. The number of zeros is in agreement with the arguments based on moments (there has to be at least four zeros). ... 

There are two ways of refueling compressed natural gas (CNG) time-fill or fast-fill. For a time-fill compressor, it is necessai y to develop a pressure only slightly greater than the vehicle storage pressure—the gas flows from greater pressure to less pressure. Time-fill compressor stations can require a couple of hours to refuel, which is a major inconvenience for most motorists. However, it is the best choice for many fleets that can he refueled overnight with one fill-post for each vehicle to be refueled. 

The opportunity is taken, while filling for testing, to ensure that the circuits can be filled without airlocks. Air vents at high points of the circuit may be automatic or manual. While the pipes are full, pumps should be run if possible to dislodge any dirt before draining down and cleaning the strainers. If a lot of dirt is found, the pipework should be filled again and reflushed. In any case, the pumps should be run at the earliest opportunity and the strainers cleaned out. 

Marshall (Ref 4) states it was introduced soon after 1900 as a filling for shells. It consisted of a mixt of 90ps of PA and lOps of... 

The Comparative Blast Performance of Torpex 2, Mmol 2, 60/40 RDX/TNT, TNT, and 60/40 Amatol , Report No 57/44 (April 1944) 7)Committee of Divisions 2 and 8, NDRC, Report on Minol and Torpex, Committee on Fillings for Aerial Bombs , OSRD 4243 (Oct 1944) 8) Anon, Allied and Enemy Explo-... 

J.R. Kidd, Field Evaluation of Minol II Explosives as a Fill for General Purpose Bombs , ADTC-TR-68-46 (Oct 1968) 73) S. Wronka,... 

R.B, Wainwright, Studies on Composition B , American Cyanamid Co, PA Contract No DAAA 21-68-C-0334, Final Report (Feb 1969) 76) D.C. Homig, British Experience with Minol as a Filling for Munitions , NOLTR 69-62 (March 1969) 77) H.L. Herman, Blast Pa-... 

Munitions suitable for use. The pure cryst form (identified by symbol CS) is used as filling for buming-type grenades and capsules. A mixt of... 

C08-0005. Determine which orbitals are filled and which is partially filled for the element Zr. 

C08-0044. Determine the atomic number and valence orbital that is filling for the element that would appear below lead in the periodic table. 

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