analysis of toothpaste

7/26/2019 analysis of toothpaste

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CHEMISTRYPROJECT

(SESSION 2015-16)

PRESENTED BY-

Bhavya Jain

Class 12-A


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CERTIFICATEThis is to certify that Bhavya Jain, student of Class XIIthA, The

Srijan School, Model Town has comleted the roject havin! the aim

"To Detect The Presence Of Different Anions And Cations In Different

Brands Of Toothpaste# durin! the academic year $%&'(&) for the

chemistry ractical evaluation of CBS* $%&) and su+mitted

satisfactory reort as comiled in the followin! a!es under my

suervision

Mr. BK Goel-eartment of Chemistry

The Srijan School, Model Town


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Ackn!l"#$"%"n&I would li.e to e/ress my dee !ratitude to my mentor0teacher Mr

B1 2oel who was a constant source of encoura!ement and valua+le

advices This roject wouldn3t have come to a successful comletion

without his !uidance

I would also li.e to than. our la+ assistant Mr Jha who was always

there at my +ec. and call, servin! me in every +est ossi+le way 4e

made sure that all the re5uirements of the roject were fulfilled

6inally, I would li.e to than. my arents for +ein! there with

continuin! suort morally and financially

T4A7189:


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OBJECTI(E)AIM

T D"&"c& Th" P*"s"nc" O+ Di++"*"n& AninsAn# Ca&ins In Di++"*"n& B*an#s O+

T&h,as&".


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In&*#c&in

There3s a wide variety of toothastes and related roducts availa+le

today in the mar.et for oral hy!iene 4owever, for a common man,

differentiation on the +asis of 5uality is really difficult with all the

fancy advertisements and offers

A toothaste contains a mildly a+rasive su+stance such as calcium

car+onate and a deter!ent or soa, some sweetenin! a!ent other than

su!ar and flavourin! oils to ma.e it leasant to taste and smell Some

toothastes contains fluorides which ma.e the enamel surface of the

tooth more resistant to +acterial activity and act a!ainst micro(

or!anisms as a meta+olic oison 2enerally any standard toothaste

contain calcium car+onate, sodium monofluoro hoshate, sodium

lauryl sulhate, ;inc sulhate, alum, some flavourin! oils are also

added

This roject +asically deals with the detection of various ions in

toothaste that determine its 5uality, and thus, a comarison +etween

the rominent toothaste +rands


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SAMP.E CO..ECTION


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RE/0IREMENTS

oot!pastes0

Colgate, Pepsodent, Close-UP, Dabur Red, Babool.

'!emicals0

Hydrochloric acid, dilute Sulphuric acid, concentrated

Sulphuric acid, Barium chloride, Ammonium chloride,

Ammonium hydroide, Ammonium carbonate, Acetic

acid, !itric acid, Sil"er nitrate, Calcium chloride,

Pottasium#errocyanide, H$S gas.

%est tubes, Bea&ers, #las&s, 'lame, spatula etc.


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THEORYIn 5ualitative analysis, the !iven comound is analysed for the

radicals, that is, cations and anions that it contains The common

rocedure of testin! on un.nown salt is to ma.e its solution and then

test this solution for the ions resent in it Then S9=$(, a

reliminary test@ for indication hichever cation is indicated, it is

confirmed on the +asis of corresondin! tests


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TESTS FOR DIFFERENT SAMPLES

COLGATE

S.

O.*RI O,SRAIO I6R'

(. Preliminary %ests

Colour )hite*dour +inty smello'

colgate

Dry Heating Colourless,

odourless gas.

C*$- may be

present.

#lame test Reddish #lame Ca$/ may be

present.

$. Dil H$S*0 test-%o the sample,

added some drops

o' Dil H$S*0.

Colourless,odourless gas.

C*$- may bepresent.

. Con'irmatory

tests.

%o the sample

added +gS*0

solution.

A 1hite ppt. C*$-con'irmed

%oo& an *.S,

added dil HCl.

Bris&

e''er"escence.

C*$-con'irmed

0. Conc. H$S*0 test-

%o the sample

added some drops

o' conc.H$S*0

!o change Conc. H$S*0

group absent


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2. 3ndependent tests-

#or S*0$- -

%o the sample

addedBaCl$solution.

)hite ppt. S*0$-con'irmed.

%o the sample

added 4ead

acetate soln.

)hite ppt. S*0$-con'irmed.

#or P*0--

Added conc H!*

to *.S and boiled.Added ammonium

+olybdate soln in

ecess and again

boiled.

Deep yello1

colouration.

P*0-con'irmed.

CATI97S

S.

O.

*RI O,SRAI

O

I6R'

5. 6roup 7-

%o the sample

added !a*H and

heated

!o change 6roup 7

absent

8. 6roup-(%o the sample

added dilute HCl

!o change 6roup 3 absent

9. 6roup-33

%o the abo"e test

tube added H$S

!o change 6roup 33

absent

:. 6roup-333

%o the sample

!o change 6roup 333

absent


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added !H0*H

and !H0Cl

(7. 6roup-3;

%o the abo"e testtube add H$S

!o change 6roup 3;

absent

((. 6roup-;

%o the sample

added !H0*H,

and !H0$C*

solution.

A 1hite ppt. 6roup ;

present.

Dissol"ed theppt. in CHC**H

and di"ided the

solution into

parts.

i %o the 'irst part

added


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!H0*H and !H0Cl

in ecess. Add

!H0$HP*0and

rubbed 1ith aglass rod.

PEPSODENT

S.

O.

*RI Observation In$erence

(. Preliminary tests

Colour Baby pin&

*dour %hat o'

pepsodent.

Dry Heating )hite 'umes,

pungent smell.

Cl- may be

present.

#lame test Reddish 'lame. Ca$/may

be present.

$. Dil. H$S*0 test-

%o the sample,

added dil. H$S*0.

Colourless,

odourless gas.

C*$-may

be present.

. Con'irmatory %ests

%o the *.S added

dil HCl solution.

Bris&

e''er"escence.

C*$-

con'irmed.

%o the solution

added +gS*0

solution.

)hite ppt in

cold.

C*$-

con'irmed.

0. Conc. H$S*0 test- A colourless Cl- may be


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%o the sample

added conc. H$S*0

pungent gas. present.

2. Con'irmatory tests

%o the sampleadded +n*$conc.

H$S*0. Heated.

6reenish,yello1 gas,

pungent smell.

Cl-

con'irmed

%o the sample

added dilute H!*,

Boiled, cooled and

added Ag!*

A 1hite ppt. Cl-

con'irmed

CATI97S

S.

O.

*RI O,SRAIO

I6R'

5. 6roup-7

%o the sample

added !a*H and

heated

!o change 6roup 7

absent

8. 6roup-3

%o the sample

added dilute HCl

!o change 6roup 3

absent

9. 6roup-33

%o the abo"e test

tube added H$S

!o change 6roup 33

absent

:. 6roup-333

%o the sample

added !H0Cl,

boiled, cooled,

)hite Ppt.

#ormed.

6roup-333 is

present.

Al/

detected.


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added !H0*H in

ecess.

4a&e test-

%o the ppt, addeddil HCl, $ drops o'

blue litmus, and

!H0*H drop1ise.

A blue ppt.

'loating incolourless

solution.

Al/

con'irmed

(7. %o the 'iltrate o'

group-333 added

H$S solution.

!o change 6roup 3;

absent

((. %o the sampleadded !H0*H and

!H0$C* solution.

A 1hite ppt. 6roup ;present.

Dissol"ed the ppt.

in CHC**H and

di"ided it into

parts.

i %o the 'irst part

added


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solution, boiled,

'iltered. %oo& the

ppt, boiled, added

!H0*H and !H0Clin ecess. Add

!H0$HP*0and

rubbed 1ith a glass

rod.

CLOSE-UP

S.O

.

*RI O,SRAIO I6R'


Colour Red

*dour Close up-smell

Dry Heating Su''ocating

smell

S*$- may be

present.#lame test Reddish 'lame. Ca$/may be


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present.

$. Dil. H$S*0 test-

%o the sample,

added Dil. H$S*0

Colourless,

pungent smell,

turned acidi'ied


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%o the sample

added !H0Cl,

boiled, cooled,

added !H0*H inecess.

present.

#e/detected.

Dissol"ed the ppt.

in dilute HCl and

added Potassium

#errocyanide.

prussian blue

colour

#e/con'irmed

:. %o the 'iltrate o'

group-333 added

H$S solution.

!o change 6roup 3;

absent

(7. %o the sample

added !H0*H and

!H0$C* solution.


present

Dissol"ed

CHC**H and

di"ided into three

parts.

i %o the 'irst part

added


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added a 'e1 drops

o' amm. oalate

solution, boiled,

'iltered. %oo& theppt, boiled, added

!H0*H and !H0Cl

in ecess. Add

!H0$HP*0and

rubbed 1ith a glass

rod.


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Dabur-RED

S.O

.

*RI O,SRAIO I6R'


Colour Red

*dour Dabur Red-smell

Dry Heating Colourless,

odourless gas.

C*$- may be

present.

#lame test Reddish 'lame. Ca$/may be

present.$. Dil. H$S*0 test-

%o the sample,

added Dil. H$S*0

!o gas e"ol"ed. Dil. H$S*0

group

absent.

0. Conc. H$S*0 %est-

%o the sample

addedconc.H$S*0solution

.

!o gas e"ol"ed. Conc. H$S*0

group absent

CA%3*!S

S.

O.

*RI O,SRAIO I6R'

2. 6roup-7

%o the sample

added !a*H and

heated


5. 6roup-3

%o the sample

added dilute HCl


8. 6roup-33 !o change 6roup 33 absent


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%o the abo"e test

tube added H$S

9. 6roup-333

%o the sampleadded !H0Cl,

boiled, cooled,

added !H0*H in

ecess.

!o change. 6roup333 absent

:. %o the 'iltrate o'

group-333 added

H$S solution.

!o change 6roup 3; absent

(7. %o the sample

added !H0*H and

!H0$C* solution.

A 1hite ppt. 6roup ; absent

i %o the 'irst part

added


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!H0*H and !H0Cl

in ecess. Add

!H0$HP*0and

rubbed 1ith a glassrod.

Babool

S.O. *RI Observation In$erence

(. Preliminary tests

Colour Reddish

*dour Babool smell

Dry Heating Colourless

odourless gas.

C*$ may be

present.

#lame test Reddish 'lame. Ca$/may be

present.

$. Dil. H$S*0 test-

%o the sample,

added dil. H$S*0.

Colourless,

odourless gas.

C*$-may

be present.

. Con'irmatory %ests

%o the *.S added

dil HCl solution.

Bris&

e''er"escence.

C*$-

con'irmed.

%o the solution

added +gS*0

solution.

)hite ppt in

cold.

C*$-

con'irmed.

0. Conc. H$S*0 test-

%o the sample

added conc. H$S*0

!o gas e"ol"ed. Conc. H$S*0

group

absent.

2. 3ndependent 6roup

%ests-


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#or S*0$- -

%o the sample

added

BaCl$solution.

)hite ppt. S*0$-

con'irmed.

%o the sample

added 4ead acetate

soln.

)hite ppt. S*0$-

con'irmed.

#or P*0--

Added conc H!*

to *.S and boiled.

Added ammonium+olybdate soln in

ecess and again

boiled.

!o change. P*0-

absent.

CATIONS

S.O.

*RI O,SRAIO I6R'

5. 6roup-7

%o the sample

added !a*H and

heated

!o change 6roup 7

absent

8. 6roup-3

%o the sampleadded dilute HCl

!o change 6roup 3

absent

9. 6roup-33

%o the abo"e test

tube added H$S

!o change 6roup 33

absent

:. 6roup-333

%o the sample

added !H0Cl,

!o change. 6roup-333

absent

.


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boiled, cooled,

added !H0*H in

ecess.

(7. %o the 'iltrate o'group-333 added

H$S solution.

!o change 6roup 3;absent

((. %o the sample

added !H0*H and

!H0$C* solution.


absent

i %o the 'irst part

added


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rod.


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COMPARATI(E

INFERENCE TAB.E

A O6

7

OO7*AS

'a28 'O32

9

SO329 '

l9SO429 Al38 6e38 -28

COLGATE

PEPSODENT

CLOSE-UP

Dabur-RED

Babool


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CONC.0SION

9n the +asis of the comarative inference ta+le, we see that

is the +est of all toothastes as it contains a majority of the

essential constituents >anions and cations@ of a toothaste.


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PRECA0TIONS

& 4andle the chemicals carefully$ :se test tu+e holder to hold the test tu+e

? 7ever add water to conc acids

= 7ever touch any chemical with hands directly

' :se a droer for concentrated Acids

) -on3t smell the vaours from too close


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BIB.IO3RAPHY

htts00enwi.iediaor!0wi.i0Toothaste

htt00wwwseminarsonlycom

htts00wwwscri+dcom0doc0DE'&'E&E0Chemistry(

analysis of toothpaste

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