InstructionNumber:5401
Component Description
> DROPTEST
>SULFURICACID(Sulfuric,Phosphoric,orSulfamicAcid)
> (1drop=1g/100mL)
COMPONENTS:
1x4029 Pipet,Calibrated0.5&1.0mL,plastic
1x5401 Instruction
1x9198 SampleTube,Graduated,25mL,plastic
w/cap
1xR‐0645TotalAlkalinityIndicator,DB
1xR‐0740SodiumHydroxideReagent,DB
TOORDERREPLACEMENTPARTSANDREAGENTSCALLTOLL‐FREE
800‐TESTKIT(800‐837‐8548).
PROCEDURE:
CAREFULLYREADANDFOLLOWPRECAUTIONSONREAGENT
LABELS.KEEPREAGENTSAWAYFROMCHILDREN.
1. Usinga1.0mLpipet(#4029),add0.5mLacid
solutiontobetestedto25mLsampletube(#9198).
NOTE:Forphosphoricorsulfamicacid,add1.0mLacid
solutiontobetestedto25mLsampletube.
2. Dilutetoapproximately1/3fullwithtapwater.
3. Add5dropsR‐0645TotalAlkalinityIndicator.
Swirltomix.Sampleshouldturnred.
4. AddR‐0740SodiumHydroxideReagentdropwise,
swirlingandcountingaftereachdrop,untilcolor
changesfromredtogreen.Alwaysholdbottlein
verticalposition.
5. RecorddropsofR‐0740SodiumHydroxideReagentas
gramsper100mL(g/100mL),whichisalmostthe
sameaspercent.
NOTE:Athigherconcentrationsofsulfuricand
phosphoricacid,thedifferencebetweengrams
perhundredmillilitersandpercentcanbe
considerable.Consultthefollowingtablesfor
correctionstobeapplied.(Sulfamicacidisa
solidnotlikelytobeabove15%insolution.)
SULFURICACID(H2SO4)
gramsper100mL percent
10 9.4
20 17.8
30 25.4
40 32.3
50 38.7
60 44.6
70 50.1
80 55.25
90 60.0
100 64.6
110 68.9
120 74.0