Low Temperature Salt

This is Quick Temper 275 manufactured by Hubbard-Hall. Quick Temper 275 is a eutectic mixture of nitrate and nitrite salts formulated for a specific range of operating temperatures. It can used as a tempering or quenching bath salt, and can be used for annealing brass. 

Temperature range of 315F to 650F (157C to 343C)

Melting point of 275F (135C)

Density is 116 pound/cubic foot

Can only be shipped via ground to US Domestic addresses.

Make sure you fully understand safe working procedures before using.