Lanthanum-doped Ba 0.6 Sr 0.4 4TiO (OH) 2 C 2 O 4 .4H 2 O was prepared by precipitation from a pH-controlled oxalic acid solution for conversion to the titanate. TGA and DTA support the proposed formula of a hydrated, mixed hydroxyoxalate. Density and resistivity measurements of the ...
化学俗名(Chemicalname) Thechemicalingredientnamenamechemicalformula Mercury,mercury,Hg PlatinumplatinumPt SulfursulfurS Diamond,graphiteandcharcoalcarbonC Whitephosphorus,redphosphorus,yellowphosphorusand phosphorusP Hydrochloricacid,hydrochloricacidandsaltHCl UreanitrateHNO3 ThesulfuracidsulfuricacidH2SO4 WangShuinong...
This invention relates to a compound represented by the formula: ##STR1## wherein B represents a hydrogen atom or a lower alkyl group; ring A represents a benzene ring which may have one or more subst
The amount of the a foregoing acid-halogenating agent or active esterifying agent used is usually 1 to 10 equivalents based on 1 equivalent of the pyrimidine derivative represented by the formula (IV). The amount of hydroxylamine derivative of the formula (V) used is usually 1 to 5 equiva...
(Al2O3),trihydrate;Apyral 2;Aluminic acid (H3AlO3);Apyral 8;Apyral 15;Apyral 60;Higilite H 31;Higilite H 32IX;Higilite H 10;BMZ;Alcoa 710;SB 632;Higilite HWC;Hydral PGA;Paperad;Alhydrogel;Higilite H 42S;Higilite H 41;H 42;Hydrated alumina;CW 308;DT 079;Higilite H 40;Rehe...
The recharge method was used to impregnate the supported bimetallic Ni-W NPs with 2.5 wt% Au, applying hydrated tetrachloroauric acid as a precursor (HAuCl4.3H2O). The amount of bimetallic NPs needed to prepare 2 g of trimetallic NPs was introduced into the quartz reactor. First, the NiW/Al...
6. Guldberg & Waage Guldberg and Waage preferred a less speculative and more direct approach simply enunciating the formula for the definition of action of mass and volume: Fchem M V a N V b (3) Where Fchem represents the...