Low-melting potassium fluoroaluminate

Details Low-melting potassium fluoroaluminate Low-melting potassium fluoroaluminate

1997-10-10

1999-11-16

Nguyen, Ngoc-Yen

Chemistry of inorganic compounds

Halogen or compound thereof

Plural metal or metal and ammonium containing

148 26, C01F 754, B23K 3534

Patent

active

059852330

ABSTRACT:
The production of a potassium fluoroaluminate having a low melting point, which can be used as a flux when soldering aluminum. The potassium fluoroaluminate is prepared in an aqueous medium from aluminum hydroxide, hydrogen fluoride and potassium hydroxide in a molar ratio of aluminum:fluorine:potassium of approximately 1:5:2. After drying at 80.degree. C. under vacuum, the resulting potassium fluoroaluminate has a differential scanning calorimetry melting point of about 548.degree. C.

REFERENCES:
patent: 4428920 (1984-01-01), Willenberg et al.
patent: 4579605 (1986-04-01), Kawase et al.
patent: 4619716 (1986-10-01), Suzuki et al.
patent: 5318764 (1994-06-01), Meshri et al.
English abstracts (2) for JP 60-204,616, Oct. 1985.

Affiliated with

Also associated with

Rating

Low-melting potassium fluoroaluminate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-melting potassium fluoroaluminate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-melting potassium fluoroaluminate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1320452