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Hengar Granules

For Prevention of "Bumping" in Boiling Liquids

In any laboratory procedure involving the boiling of a liquid, inert and insoluble, Hengar Granules effectively prevent super-heating with its attendant dangerous explosive vaporization commonly known as "bumping".

A few Hengar Granules in any boiling liquid permit a steady copious stream of bubbles to escape without this spasmodic splatter. Evaporation or distillation proceeds quietly and smoothly. Sharper fractions result. Flask breakage is reduced and watching time is minimized. Froth is spread out evenly and does not climb the neck of the flask. Especially useful in boiling soap solutions and evaporating ethereal extracts of fat. With Hengar Granules in the vessel, any gases formed are extracted from the liquid quickly and completely.

Insoluble, Hengar Granules cannot contaminate the liquid. They remain at the bottom of the flask or beaker, permitting the liquid to be readily poured off. After use, the granules are simply discarded. Hengar Granules are also available with a pure selenium coating, for use in the Kjeldahl digestion and distillation method of organic nitrogen determination.


Hengar Granules, Plain

High purity, white, amphoteric alundum granule. Extremely hard porous surface. Will not crumble or "powder". Four mesh granule size. Specific gravity 3.97. MSDS Sheet

 
Description Quantity Per
Package
Part Number List Price
136A Plain Granules 100g 901600 $23.00
136B Plain Granules 250g 901700 $34.00
136C Plain Granules 500g 901800 $51.00
136D Plain Granules 10kg 901900 $566.00

Hengar Granules, Plain Micro

High purity, white amphoteric alundum granule. Extremely hard porous surface. Will not crumble or "powder". Ten mesh granule size. Specific gravity 3.97. MSDS Sheet

 
Description Quantity Per Package Part Number List Price
136AA Plain Micro Granules 100g 903700 $44.00
136CC Plain Micro Granules 500g 903800 $89.00

Hengar Selenized Granules

High purity, amphoteric alundum, specially treated with selenium for use in determination of amino and cyanide nitrogen. Four mesh granule size, iridescent bluish black color. Selenium as a solid is relatively nontoxic. Its vapor or fumes are highly toxic. TLV 0.2 mg/cubic meter. Specific gravity 4.10. MSDS Sheet

 
Description Quantity Per
Package
Part Number List Price
132A Selenized Granules 100g 901100 $60.00
132B Selenized Granules 250g 901200 $97.00
132C Selenized Granules 500g 901300 $181.00

Hengar Selenized Granules, Micro

High purity, amphoteric alundum, specially treated with selenium for use in determination of amino and cyanide nitrogen. Ten mesh granule size, iridescent bluish black color. Specific gravity 4.10. MSDS Sheet

 
Description Quantity Per Package Part Number List Price
132AA Selenized Micro Granules 100g 901400 $68.00
132CC Selenized Micro Granules 500g 901500 $218.00

Hengar Carborundum #12 Granules

Hard, bluish black, iridescent silicon carbide granule. No reduction characteristics. Oxidizes slowly at 1472°F. Twelve mesh granule size. Specific gravity 3.20. MSDS Sheet

 
Description Quantity Per Package Part Number List Price
133A Carborundum #12 Granules 100g 902000 $45.00
133B Carborundum #12 Granules 500g 902100 $86.00

Aitch-Tu-Ess (H2S)

An economical way to produce hydrogen sulfide gas for use in qualitative analysis and the general chemistry laboratory. Aitch-Tu-Ess is a dry mixture of sulfur, a highly condensed hydrocarbon, and an inert dispersal agent. The sulfur and the hydrocarbon are combined in the proportion most conducive to maximum yield of H2S gas, while the inert dispersal agent serves to support the reactants. This material, when heated, produces H2S gas which is highly toxic. Heating and all experiments should be conducted under a fume hood. The threshold limit value of H2S is 10 parts per million or 15 milligrams per cubic meter. MSDS Sheet

 
Description Quantity Per
Package
Part Number List Price
310A Aitch-Tu-Ess 1 Kilo. Box 903400 $87.00
330A Aitch-Tu-Ess 1-Doz. 5g Cartridges
(1 Dozen/Box)
903500 $40.00
330B Aitch-Tu-Ess 1-Gross 5g Cartridges
(1 Dozen/Box)
903600 $233.00

Airejector

Airejector

Hengar

Hengar

Inoculating Turntables

Inoculating Turntables

Microplate Stability Chamber

Microplate Stability Chamber

Slide Staining Rack

Slide Staining Rack

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