PARR
BOMBS
For rapid combustion a n d fusion reactions with sodium p e r o x i d e , a n d for other laboratory purposes AC2E
22 ml.
This is a g e n e r a l - p u r p o s e bomb with electrodes for hot wire i g n i t i o n . It is widely used for determining sulfur, chlorine, p h o s p h o r u s a n d o t h e r elements in a g r e a t variety of c o m b u s t i b l e organic materials. F u r n i s h e d with a 94% N i cup and Niplated brass cover. Other cups and covers are available.
A1ACD
22 ml.
This bomb is t h e same as AC2E except it has a 5-inch stem for use in the Parr peroxide bomb calorimeter. It is used for measuring heats of combustion, also for chemical analyses following calorimetric tests.
AC2E
AC4E
A1ACD AC4E
22 ml.
This bomb is similar to AC2E except it has a gas connection for purging with an inert gas. It is used with a Parr 1411 calorimeter for measuring the heats of combustion of thermite a n d other self-burning pyrotechnic mixtures.
AC3E
AC3E
22 ml.
This bomb has a plain cover without electrodes. It is used for sodium peroxide reactions which can be started by heating with a gas torch. Cups of 9 4 % Ni, 36% Ni, 9 9 + % Ni, carbon steel and stainless steel are available.
A116AC
42 ml.
This bomb is similar t o AC2E except all parts are larger and heavier than in t h e 22 ml. bomb. I t will accommodate samples twice as large as AC2E and AC3E.
A2AC4
A116AC
45 ml.
This bomb is t h e same as AC3E except the cup is 37/s" deep t o provide a 45 ml. internal volume. Cups of stainless steel, 94% n i c k e l a n d 9 9 + % nickel are available.
A2AC4
A2AC3
8 ml.
This bomb is similar to AC3E except it has a smaller cup with a hemispherical bottom. Sodium peroxide reactions are started by heating with a gas torch. T h e cup is 94% nickel.
A2AC3
A1MB A 1MB
Ask your PARR Dealer for details, or write
PARR
2.5 ml.
This is t h e smallest of t h e several Parr peroxide bombs. It has a 94% nickel cup and cover, and is used for treating micro samples. direct
INSTRUMENT C O . MOLINE, ILLINOIS
WHICH CATALYST CARRIER Should you use? Wide variety in shape, size, density, surface, pore size and porosity is offered in the complete line of catalyst carriers made by Carborundum. Materials are ceramic-bonded granules of fused alpha aluminum oxide, hexagonal (alpha] silicon carbide, silica and fused mullite. Chemical and physical properties can be selected to meet virtually every requirement. TEST KIT AVAILABLE: To help in appraising the performance of various types of catalyst carriers, Carborundum offers a complete test kit at a nominal charge of $15. Comprehensive information on properties, test procedures, and prices will also be supplied. Please write on your company letterhead to Dept. AC-12, Refractories and Electronics Division, Carborundum Co., Latrobe, Pa.
CARBORUNDUM® Circle No. 10 on Readers' Service Card
82 A
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Circle No. 93 on Readers' Service Card
ANALYTICAL CHEMISTRY
