Table 1. The solubility in water of initial substances and their compositions.

No	Samples, conditions of preparation	Solubility
		Absolute, mg/l	Increase, multiplicity
Compositions based on FBZ
1	FBZ- initial sample	0.33	–
2	Physical mixture (PM) of FBZ/PVP (1/9), without Ma	0.67	2
3	SD of FBZ/PVP (1/9), 2 h M	2.0	6
4	SD of FBZ/PVP (1/9), 4 h M	2.70	8
5	SD of FBZ/PVP (1/9), 8 h M	4.50	13
6	SD of FBZ/PVP (1/9), 16 h M	4.60	14
7	SD of FBZ/PVP (1/9), 20 h M	4.60	14
Compositions based on TBZ
8	TBZ -initial sample	2.0	–
9	PM of TBZ/PVP (1/9) without Ma	2.30	1
10	SD of TBZ/PVP (1/9) , 2 h M	11.60	4
11	SD of TBZ/PVP (1/9), 4 h M	18.10	9
12	SD of TBZ/PVP (1/9), 8 h M	34.50	17
13	SD of TBZ/PVP (1/9), 16 h M	57.60	29
14	SD of TBZ/PVP (1/9), 20 h M	57.10	29

^aM = machining.