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Taylor Technologies K-1805 Owner's manual

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DROP TEST
MOLYBDENUM (1 drop = 2, 5, 20, or 50 ppm)
COMPONENTS:
2 x 4030 Pipets, Calibrated 0.5 & 1.0 mL, plastic w/cap
1 x 4078 Pipet, Graduated, 3 mL (0.5 mL div.), plastic
1 x 5375 Instruction
2 x 9198 Sample Tubes, Graduated, 25 mL, plastic w/cap
1 x R-0887 Molybdenum Standard 20 ppm
1 x R-0890 Molybdenum Buffer Solution
1 x R-0891 Molybdenum Indicator Solution
1 x R-0892 Molybdenum Titrating Solution, DB
TO ORDER REPLACEMENT PARTS & REAGENTS CALL TOLL-FREE 800-837-8548.
PROCEDURE:
CAREFULLY READ AND FOLLOW PRECAUTIONS ON REAGENT LABELS.
KEEP REAGENTS AWAY FROM CHILDREN.
For 1 drop = 2 or 5 ppm Mo
1.Rinseandll25mLsampletube(#9198)tomarkwithwatertobetested.
NOTE: For1drop=2ppm,llto25mLmark.
For1drop=5ppm,llto10mLmark.
2.Rinse and ll second 25 mL sample tube to same mark with distilled, deionized, or
molybdenum-freetapwater.
3.For25mLsample,usingseparate1.0mLpipets(#4030),add1.0mLR-0890Molybdenum
BufferSolutionand1.0mLR-0891MolybdenumIndicatorSolutiontoeach25mLsample
tube.For10mLsample,add0.5mLofeachreagenttoeachsampletube.Swirltomix.
4.Add R-0892 Molybdenum Titrating Solution, dropwise,swirlingandcountingaftereach
drop,to25mLsampletubecontainingmolybdenum,untilcolormatches25mLsampletube
containingnomolybdenum,oruntilnofurtherchangeincoloroccurs.Alwaysholdbottlein
verticalposition.
5.For25mLsample,multiplydropsofR-0892MolybdenumTitratingSolutionby2.Record
as parts per million (ppm) molybdenum. For 10 mL sample, multiply drops of R-0892
MolybdenumTitratingSolutionby5.Recordasppmmolybdenum.
31LovetonCircle,Sparks,MD21152U.S.A.
800-TESTKIT(837-8548) • 410-472-4340 8/00
NOTE: Toconvertmolybdenum(Mo)readingstomolybdate(MoO
4
2-
),multiplyMoreadings
by1.7;toconverttosodiummolybdatedihydrate(Na
2
MoO
4
·
2H
2
O),multiplyby2.52.
For 1 drop = 20 or 50 ppm Mo
1.Rinseandllone25mLsampletube(#9198)to25mLmarkwithdistilled,deionized,or
molybdenum-freetapwater.
2.Usinga3mLpipet(#4078),placewatertobetestedinsecond25mLsampletube.
NOTE: For1drop=20ppm,llpipetto2.5mLmark.
For1drop=50ppm,llpipetto1.0mLmark.
3.Diluteto25mLmarkwithdistilled,deionized,ormolybdenum-freetapwater.
4.Usingseparate1.0mLpipets(#4030),add1.0mLR-0890MolybdenumBufferSolutionand
1.0mLR-0891MolybdenumIndicatorSolutiontoeach25mLsampletube.Swirltomix.
5.AddR-0892MolybdenumTitratingSolutiondropwise,swirlingandcountingaftereachdrop,
to25mL sampletube containingmolybdenum,until colormatches 25mLsample tube
containingnomolybdenumoruntilnofurtherchangeincoloroccurs.Alwaysholdbottlein
verticalposition.
6.For2.5mLsample,multiplydropsofR-0892MolybdenumTitratingSolutionby20.Record
as parts per million (ppm) molybdenum. For 1.0 mL sample, multiply drops of R-0892
MolybdenumTitratingSolutionby50.Recordasppmmolybdenum.
NOTE: Toconvertmolybdenum(Mo)readingstomolybdate(MoO
4
2-
),multiplyMoreadings
by1.7;toconverttosodiummolybdatedihydrate(Na
2
MoO
4
·
2H
2
O),multiplyby2.52.
NOTE: R-0891MolybdenumIndicatorSolutionhasalimitedshelf-life.Occasionallycheck
indicator performance by following procedure for 1 drop = 2 ppm using R-0887
Molybdenum Standard 20 ppm as the sample. Titration should require 10 drops
toendpoint.(An alternate kit, K-1805P,isavailable, which replacesR-0891 witha
stable,two-partreagentsystem.)
Instr. #5375
/