Albert W. Jache

PREPARATION OF CHLORINE MONOFLUORIDE

Abstract A procedure is described for the synthesis of chlorine monofluoride from chlorine and chlorine trifluoride.

Reaction of some group VI elements, oxide and uranium with chlorine-hydrogen fluoride mixtures

Abstract When group VI elements and uranium were reacted with chlorine-hydrogen fluoride mixtures, good yields of WF 6 were found in the case of W, while only MoF 5 , Mo V chlorofluorides, and a spectroscopic trace of MoF 6 were found when the element was Mo. Uranium gives UF 4 at lower temparatures whereas at higher temperatures U 2 F 9 and a spectroscopically-detected UF 6 were found. The reaction with SOF 2 always results in SO 2 F. At higher temperatures SF 6 could be detected by spectroscopic means but not isolated. The predominant product with Se is SeCl 4 . When WO 3 is reacted an oxyfluoride is formed.

The solubility of group I and group II fluorosulfates in fluorosulfuric acid

Abstract The solubilities at 25° of some Group I and Group II fluorosulfates in fluorosulfuric acid have been determined. The solubilities (g fluorosulfates/100 g fluorosulfuric acid) are LiSO3F, 38.78; NaSO3F, 80.21; KSO3F, 63.83; RbSo3F, 89.43; CsSO3F, 132.4; MgSo3F, 0.12; CaSO3F, 16.39; SrSO3F, 14.52 and BaSO3F, 4.67. These results can be rationalized on the basis of lattice and solvation energy considerations. These solubility trends are consistent with those of the corresponding fluorides in hydrogen fluorides.

The reaction of elemental phosphorus with HF solutions

Abstract Red phosphorus reacted with HF at 200° under autogenous pressure to form PF 3 and H 2 . The conversion to PF 3 increased markedly when an alkali or alkaline earth metal fluoride was present in the reaction. When equivalent amounts of phosphorus and alkali or alkaline earth fluorides were used in an excess of HF under similar conditions, corresponding hexafluorophosphate salts were obtained, along with PF 3 and H 2 . The conversion to the hexafluorophosphate salts increased as the size of the cations increased, reaching about 90% for KPF 6 in the alkali metals and about 32% of Ba(PF 6 ) 2 in the alkaline earths.

The system CuF2-HF-H2O at 0 °C

Abstract The system CuF 2 -HF-H 2 O has been investigated at 0 °C. The solid phases in equilibrium with the solutions are CuF 2 · 2H 2 O and CuF 2 .

Chlorine monofluoride assisted intercalation in graphite

Abstract Phosphorus pentafluoride will form a phosphorus fluoride intercalation compound with graphite in the presence of chlorine fluoride. It will not, under experimental conditions, intercalate when reacted with graphite alone or in the presence of hydrogen fluoride. Apparently, sufficient oxidizing power is needed before intercalation will occur.

Disproportionation of bromine and iodine in hydrogen fluoride media

Abstract Disproportionation occurs when chlorine, bromine, or iodine are reacted with a hydrogen fluoride solution containing silver fluoride. In each case the reaction product is a halide which is tied up as the insoluble silver salt while the oxidation products are chlorine monofluoride, bromine trifluoride and iodine pentafluoride respectively.