vitriol
5.Mixed messages are still coming out of Washington; but the vitriol has gone.
6.Centrifugal blowers, with model number D400-15, are key equipments to a vitriol plant which lies in Liuzhou, Guangxi.
7.The influence of acid hydrolysis condition on the acquiring rate of xylitol has been investigated. The optimum parameters of manufacturing process have been obtained as follows-the hydrolysis pressure 0.05 MPa,temperature 120 ℃,vitriol concentration 1.5%,duration 4 h and the acquiring rate is 62.2%.
8.When finished the tests of chloride containing in the chlorinated polyethylene and the confecting of 0.001% standard vitriol liquor in the stearic acid standard, it was found out that the test result according to the test methods in the standard requirement were different from the actual requirement.
9.In this paper , a new method was introduced to deposit the polysaccharide of ganoderma lucidum by 80% alcohol solution, and append Cu-reagent. The polysaccharide of ganoderma lucidum are precipitated selectively from other macromolecules, and the deposition would turn into a colored substance by phenol-vitriol action, which was measured at 485nm and found that the absorption value (A) was in direct proportion to the content of polysaccharide.
10.The best process condition are presented bellow,the weight ratio of graphite to vitriol,potassium permanganate and ferric trichloride is 1.0 to 3.0 to 0.8 to 0.2.The reaction temperature and time are 50℃ and 60 minute respectively. Macerating the low sulfur graphite by 3% canesugar Borate,drying it in Low temperature,expanding it in 950℃,making it pressboard in the pressure of 10MPa.
