Grease flash point

Krytox seems like a product from heaven, as many of its attributes are spectacular. It is a fluorinated grease and is therefore impervious to hydrocarbon- and water-based solvents. It cannot bum, so it has no flash point and can be exposed directly to oxygen, even at high pressures. It can be used over the widest temperature range of all the greases and works equally well with stopcocks as with joints. It has remarkable stability characteristics and can withstand long-term abuse. Best of all, Krytox greases are nontoxic. 

The standard tests used to determine the properties of petroleum and petroleum products are commonly applied to grease. Among these are aniline point (ASTM D-611), carbon residue (ASTM D-189,ASTM D-524, ASTM D-4530, IP 13, IP 14, IP 398), fire point (ASTM D-92), flash point (ASTM D-92), pour point (ASTM D-97), and viscosity (ASTM D-445). However, because of the complexity of grease formulations and the variety of uses, many other tests are also deemed necessary to estimate performance in service. Other tests not included in this chapter may be found elsewhere under the test methods for lubricating oil (Chapter 12). Some modification of the test method may be necessary because of the different character of grease vis-a-vis lubricating oU. 

DIETHYLALUMINUM CHLORIDE, 15% SOLUTION IN HYDROBARBONS (96-10-6) Forms explosive mixture in air [flash point (based on hexane) — 14°F/—26°C]. Once solvent has evaporated, this substance is pyrophoric this is dangerous on organic materials (wood, cloth, grease, etc.). Flow or agitation of substance may generate electrostatic charges due to low conductivity. See also above entry. 

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