74page

Iil4tr +^l-'J Et= E= 67 11 60/40 +q9 a+ +4+ hlgel Hlgg 2:101q so/ro El+ql^l= E+gE Hl€- ol =-A1 g+4 ^l 10:1ol 4 20:14 E4l ol =trI. 71. EF9.=ECq 5i9-e++g zl==- + +^l-h} EE+.+g 4tlz1E +CE, +, =F _qe+t (HBFa), +t(ILBQ), 5F9-e-+t+4(trXSn(BFa)z), r4.z 5Fs-=.+t}B(pb(BFa)z) -g.-tr. +€+4. oJ gg €r-lE#ql 7l+ 'J4/.|gall gl+.5F9e3tI* s=+.+E dEE= aJ:1ra|_r. tE= f,zlalzl 96Iq dzlaJ4. ++Eql^l =+ _q=+t}g oI4 HI *yi Bol zlfEatl€+. BFa- + 3HzO = HsBOe + 3H* + 4F- ol trI +"+ffl B olgg pbFzE4 ddgzl a+. Bte BFa-9 zI+EEll(+, HI+ 4.D= 4 el ,Jol alolgg € C ++. HI+ 4Eql d++e-l B+*ql € 6"19 q 4 -J4. +tg EtI+ HI+:.Iq (fast) HJ+ (slow) HI+ uJ oI +44 Bge ts+sq oE- *#€+. <s 2-13>9 5+sE-Bt €rls#q49 =^dq 49=zJol+. E 2-13 =+ _ e.E=# =trlE=Eel =drl 5+g=A al6J E / =zJ ^d zl9 Ble+ =+ssBrI+4 =+s-E+t}B =+ssBrI gE(c) g+d+'JE(A/dm2) .J+ 'f d++E +4 luJ(93 dE, m/min) 160-280 eU 40-80 eU 190-280 e/! 17o5-25) 3(1-6) 70Sn/30Pb 1-3 80-r40 s/t 20-40 eU 190-280 e/t 1705-25) 3(1-6) 70Sn/30Pb 5-8 HsBOs + 3FIF = H(BFgOH) + ZHzO H(BFsOH)+HF=HBFa+HzO uf. +71=+g 7l* g+ €u'ls.#99 =F-e-E-+tlg oltrI. f 7l + *aql ql6J Elol99 +6ICr+ Hls-;1 a9 ^lgcql +t}g EI+6Izl 9*e EA+9E d*9 zlql olsqltrI. != q+E CgqI4 {EI 4+ +ril trl+ql 5F-qE- 1izl#48I Elrzl +4 C