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PHN TCH CNG NGHIPGVHD:Th.s Trn Nguyn An SaSVTH: Trang Thanh Chin MSSV: 10034541LP: DHPT6

CH : XC NH NG THI CaO V MgO TRONG PHN BN V CTRNG I HC CNG NGHIP TP. HCMKHOA CNG NGH HA HC

LOGONI DUNG2. QUY TRNH PHN TCH MgO, CaO TRONG PHN V C.1. S LT V PHN V C V MgO V CaO.S LT V PHN V CPhn v c cn gi l phn khong, phn ha hcPhn v c l cc loi mui khong c cha cc cht dinh dng ca cy. Phn v c c chia lm 3 loi chnh.Phn a lng.Phn trung lng.Phn vi lng.

C 13 cht dinh dng khong thit yu i vi sinh trng v pht trin ca cy. Trong c: - 3 nguyn t a lng l: N, P, K.- 3 nguyn t trung lng l: Ca, Mg, S . - 7 nguyn t vi lng: Fe, Mn, Zn, Cu, Mo, B, Cl. - Ngoi ra, cn mt s nguyn t khc cn thit cho tng loi cy nh: Na, Si, Co, Al.

3S LT V CaO V MgO.Cu to v tnh cht ca CaO.CaO l cht rn c dng tinh th mu trng, l mt cht n da c tnh kim.N c phn t gam bng 56,1 g/mol, h s gin n nhit 0,148 ,nhit nng chy 2572C

4S LT V CaO V MgO.Cu to v tnh cht ca MgO.N cphn t gam40,3gam/mol,h s gin n nhit0,026 ,nhit nng chy2852 C.Cht ny c th ly t ngun: talc, dolomite, magnesium carbonate.

5VAI TR CA CaO V MgO.Ca2+.L thnh phn ca mng t bo cn thit cho s phn chia t bo c bnh thng. Gip cho mng t bo vng chc. Duy tr cu trc ca nhim sc th. Hot ho nhiu enzim. ng vai tr nh mt cht gii c bng cch trung ho axt hu c trong cy.

a. Nhn din triu chng thiu ht Ca2+:- Cc l non ca cy mi trng b bin dng v c mu xanh la sm khng bnh thng. - L c hnh i hoa v qun, cc chi tn cng suy thoi. - Sinh trng ca r b suy yu, c r thng gy. - Chi hoa rng sm, thn yu.b. Bin php khc phc:- Bn vi hoc CaSO4 trong trng hp t chua. - Phun Ca(NO3)2 nng 0,75-1%. - Bn lom6VAI TR CA CaO V MgO.Mg2+.L thnh phn cu to ca dip lc t, c vai tr quan trng trong quang hp. L hot cht ca h enzim gn lin vi s chuyn ho hydratcarbon v tng hp axit nucleic. C vai tr thc y hp th v vn chuyn ln ca cy. Gip ng vn chuyn d dng trong cy.

a. Nhn din triu chng thiu ht:- a vng phn tht gia cc gn l, ch yu l gi do dip lc t hnh thnh khng y , gy nn vt sc hoc vt khng lin tc. - L nh, gin thi k cui v mp l cong ln. - mt s loi rau c cc m vng lt gia cc gn l v cc mu da cam, hoc ta. - Nhnh yu v d b nm bnh tn cng v thng b rng l sm.b. Bin php khc phc:- Magi sunfat: dng bn cho nhng cy c nhu cu Mg cao nh thuc l, cy n tri... bn cho cc loi t ngho Mg nh t xm, t ct... Ho ra nc vi nng 0,25-1% phun qua l. - Magi kali sunfat: c th bn lt, bn thc bng cc ri u trn mt rung; hoc bn theo hng, theo hc; hoc ho ra nc phun qua l.-Magi cacbonat: t tan trong nc nn cn bn lt. Vi cy trng cn nn bn ri theo hng theo hc.- Magi phtpht: phn ny c hm lng ln cao nn khi bn cn phi tnh ton cn i vi ln. C th dng bn lt hoc thc, bn theo hng, hc.

7QUY TRNH XC NH HM LNG MgO V CaO.Quy trnh ly mu v x l mu.

Quy trnh phn tch.

Tnh ton hm lng CaO v MgO.

Nguyn tc:Xc nh Canxi v Magie trong mu bng phng php chun complexon sau khi tach khi ion photphat trong mu qua ct trao i cationit v oxit R2O3 bng dung dch amoniac.

8QUY TRNH XC NH HM LNG MgO V CaO.QUY TRNH LY V X L MU

Cn muHa tanC cnLcRaDung dch mu25ml H2O5ml HCl 25ml cng thy10HCl 20ml nc ct si100ml ddPha long 200Lc qua ctcationitHCl 10%1gCHUN B CT CATIONIT.Cn 40g nha cationit vo becher 250ml, ra sch bng nc ct,sau np nha vo ct lc nh cho n khi ht bt kh trong ct.Rt dung dch HCl 10% qua ct vi tc 8-10ml/pht, lng acid qua ct cho n khi phn ng nh tnh vi ion Fe3+ trong dung dch chy t ct.Ra ct cho n khi mi trng trung tnh theo ch th mety da cam, sau di qua ct 250ml dung NaCl 5% vi tc nh trn.Tip tc ra ct cho n khi mi trng trung tnh theo ch th methy da cam. Ct cha nha trao i lc ny dng Na+.CHUN B MUCn chnh xc khong 1g mu, thm t bng 25ml nc ct v 5ml HCl m c, un nh v dm cho tan ti a.Thm 25ml hn hp cng thy, dng a thy tinh khy u , c cho n khi kh trn bp in vi tc trung bnh (khong 70oC), thm khoang 10ml HCl m c v 5 git gelantin, c nh n va kh, ngui v lp li qu trnh keo t 2 ln na, thm 20 ml nc ct vo un si, em lc nng bng giy lc bng vng, ra keo bng nc ct cho n khi ht ion Cl-, dch lc c ra tp trung li ngui v nh mc ln 250ml(dung dch A)Ht 100ml dung dch A vo beach 250, pha long bng nc ct n 250 ml, khuy u ri cho qua ct cationit chun b trn vi tc 12-14ml/p.Dng dung dcihj HCl ra ra cc ion canxi magie v cc ion kim loi khc vi tc 8-10ml / cho n khi dung dch qua ct ht ph ng vi ion Fe3+v cho d 20ml axit na, ton b dung dch cho vo beche 250ml.Dng amoniac(1:1) trung ha n khi kt ta cc hidroxit st, ngn ri cho d 1ml NH4OH na. un nhd ung dch ui ht NH4OH d. ngui dung dch, chuyn vo bnh nh mc 250, thm nc n vch, lc k v lc bng giy lc bng xanh vo erlen sy kh, b phn dung dc lc u (Dung dch B)

9QUY TRNH XC NH HM LNG MgO V CaO.QUY TRNH PHN TCH MU.

Ht muEDTA20ml m PH105ml KCN 5%1g ch th ETOOHt25mlChun Chuyn mu nho sangXanh chm(V1)Chun mu trng(V2)Ht mu25mlHt5ml KOH 30%5ml KCN1g murexitChuyn muHngsang tm (V3)

Chun mu trng(V4)X l kt quQui trnh xc nh Ca, Mgnh mc dung dch muthnh 250mlHt 25ml dd cho vao erlen, thm 20ml m pH=10 i vi mu th 1.Thm 5ml dd KCN 5%, v cht ch th ETOO.Tin hnh chun bng EDTA cho n khi dd chuyn t mu nho sang xanh chm.(V1)Chunb 2 mu song song.Tin hnh chun mu trng thu c (V2)i vi mu th 2: Ht 25ml dd mu vo erlen, thm5ml dd KOH 30% v 5ml dd KCN vi cht ch th murecidTin hnh chun bng dd EDTA cho n khi dd chuyn sang mu tm (V3)Tin hnh chun mu trng(V4)

10QUY TRNH XC NH HM LNG MgO V CaO.

11TI LIU THAM KHO.10 tiu chun ngnh 657 2005.10 tiu chun ngnh 658 2005.Gio trnh phn tch cng nghip Trn Nguyn An Sa.OAOC official methods of analysis (2009).

12Thank You !LOGO