To Prepare Pigments and Poster Paints Using Various Chemicals and Reagents

To Prepare Pigments And Poster Paints Using Various Chemicals And Reagents This is to certify that Pujit Singh Of XIIC !as accomplished this project entitled " To Prepare Pigments And Poster Paints Using Various Chemicals And Reagents# Under my Super$ision and %uidance# &'r# !arsh %upta( Contents S#no#

Contents

1.

Acknowledgement

2.

Aim

3.

Theory

4.

Chrome Yellow

5.

Efficiency Of Chrome

Page )o#

Yellow 6.

Pr!!i"n #le

$.

Efficiency Of Pr!!i"n

#le %.

Concl!ion

&.

#i'lio(r")hy

Ac*no+ledgement I +ould li*e to sho+ my gratitude to my Chemistry Teachers 's# Anita Sood , 'r# !arsh %upta +ithout +hose support and encouragement encouragement this project could ne$er ha$e ha$e ta*en the present shape # I +ould also li*e to than* my la- incharge 'r# Vinod .or helping 'e out /uring The Practical Part Of This Project#

Aim Theory 0#Pigments1A )igment i! " finely di*ided m"teri"l which contri'te! to o)tic"l "nd other )ro)ertie! of  )"int!. Pigment! m"y 'e cl"!!ified "ccording to their com)o!ition or !orce which they "re o't"ined from. +owe*er the mo!t common "nd !efl cl"!!ific"tion i! th"t color )igment! c"n 'e m"de !ing !im)le chemic"l re"ction! "nd techni,e!. 2#Poster Paints (rinding " )igment or " mi-tre to " *ery fine )owdered "nd then !!)ending the )owder in" *ery fine li,id m"ke! )o!ter )"int !o "! to " niform !!)en!ion. or m"king )o!ter )"int! the )igent! m"de 'y *"rio! chemic"l re"ction! "re thoroghly mi-ed with the medim. /ometime! the )"int h"rden! 't the "ddition of lkew"rm w"ter to it c"n !often it. 3#'edium 0edim !ed for m"king )"int! i! m"de 'y mi-ing 3ml of cle"r gle with 1ml of w"ter "nd "dding " dro) of li,id detergent to it. Chrome 4ello+ Chemically *no+n as 56A/ C!RO'AT6 &P-CrO 7( the yello+ pigment is o-tained as follo+s" Procedre 1. i!!ol*e $gm of Pot"!!im Chrom"te in 5m w"ter "nd 1gm e"d itr"te in 1m w"ter in Two /e)"r"te #e"ker!. 2. Por The Pot"!!im Chrom"te /oltion in the e"d itr"te "nd !tir contino!ly. 3. e"d Chrom"te !e)er"te! "! )reci)it"te "nd i! the re,ired )igment. 4. ilter the )reci)it"te "nd dry the )igment. e"ction 7n*ol*ed 82CrO4 9 P':o3;2 P'CrO4 9 28O3 6fficiency Tot"l m"!! of re"ct"nt! !ed < :E-clding the m"!! of w"ter !ed for diltion; 0"!! Of P"int=Pigment O't"ined < Efficiency in form"tion of yellow color

< Prussian 8lue Chemically *no+n as Comple9 .erro Cyanide &.e7:.e&C)(;<3( Procedre 1.

0"ke A !oltion of 5gm of +ydr"ted 7ron:777; Chloride in 5m of w"ter.

2. 0"ke " !oltion of 1gm of Pot"!!im erroCy"nide in $5m of w"ter. 3. Add 7ron Chloride !oltion in to Pot"!!im erroCy"nide:84>e:C;6?; !oltion while !tirring 'ri!kly. 4. A d"rk 'le color *ery fine )owdered ty)e !'!t"nce )reci)it"te!. 5.ilter the )reci)it"te "nd w"!h it with w"ter. 7t t"ke! "long time to filter th i! !'!t"nce. e"ction in*ol*ed 384>e:C; 6? 9 4eCl3 e4>e:C;6?3 6fficiency Tot"l m"!! of re"ct"nt! !ed< :e-clding m"!! of w"ter !ed for diltion; 0"!! of P"int=Pigment o't"ined< Efficiency 7n orm"tion Of #le Pigment O't"ined i!< Concl!ion ine Po!ter P"int! @ere o't"ined !ing *"rio! Chemic"l! "nd e"ct"nt!.