Parr-instrument 6400 Manual de usuario descargar pdf (Pagina 59)

6400 Calorimeter Instruction Manual

6-4

Heat of formation of sulfuric acid (from SO

) is 36.1 calories / milliequivalent.

Sample mass is the mass of sample burned in the bomb (grams).

Sulfur multiplier is multiplied by the product of the user entered sulfur value

and the sample mass to arrive at the number of

milliequivalents of sulfuric acid in the bomb washings.

Example 1:

The following assumptions are made for the factory default settings of the

calorimeter

1) The acid value is that of nitric acid only

2) The concentration of the titrant used is 0.0709N

3) 1 calorie (I.T.) is equal to 4.184 Joules

4) The heat of formation of HNO

is 14.1 cal/meq

5) The heat of formation of H

is 36.1 cal/meq

MJ/kg 42.8523 or cal/g 10241.9489

5087.0

0000.507439.246.9)6468.5(

5971.937

e-e-e-Wt

cal 24.7439

1.360.6238meq

087g)(2.16)(0.5

SO4)H mult)(Hf urmass)(sulf le(%S2)(samp

cal 6.9

1.140709.0

)6.9(

)HNO mult)(H acid)(acid of (ml

321

3f1

−−−

⎟

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calcalcalC

cal

meq

cal

meq

cal

meq

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 102 103

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Parr-instrument 6400 Manual de usuario Pagina 59

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