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preface to fifteenth edition

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PRACTICAL LABORATORY INFORMATION 11.41<br />

11.5 GRAVIMETRIC ANALYSIS<br />

TABLE 11.19<br />

Gravimetric Fac<strong>to</strong>rs<br />

In the following table the elements are arranged in alphabetical order.<br />

Example: To convert a given weight of Al 2 O 3 <strong>to</strong> its equivalent of Al, multiply by the fac<strong>to</strong>rat the right,<br />

0.52926; similarly <strong>to</strong> convert Al <strong>to</strong> Al 2 O 3 , multiply by the fac<strong>to</strong>rat the left, 1.8894.<br />

Fac<strong>to</strong>r<br />

Fac<strong>to</strong>r<br />

ALUMINUM<br />

Al 26.9815<br />

0.74971 Al 4 Al 4 C 3 1.3341<br />

0.058728 Al 4 Al(C 9 H 6 ON) 3 (oxinate) 17.027<br />

0.65829 Al 4 AlN 1.5191<br />

1.8894 Al 2 O 3 4 Al 0.52926<br />

1.4165 Al 2 O 3 4 Al 4 C 3 0.70596<br />

0.38233 Al 2 O 3 4 AlCl 3 2.6155<br />

0.41804 Al 2 O 3 4 AlPO 4 2.3921<br />

0.29800 Al 2 O 3 4 Al 2 (SO 4 ) 3 3.3557<br />

0.15300 Al 2 O 3 4 Al 2 (SO 4 ) 3·18H 2 O 6.5361<br />

0.10746 Al 2 O 3 4 K 2 SO 4·Al 2 (SO 4 ) 3·24H 2 O 9.3055<br />

0.11246 Al 2 O 3 4 (NH 4 ) 2 SO 4·Al 2 (SO 4 ) 3·24H 2 O 8.8922<br />

4.5197 AlPO 4 4 Al 0.22125<br />

1.3946 CaF 2 4 AlF 3 0.71704<br />

0.58196 P 2 O 5 4 AlPO 4 1.7183<br />

AMMONIUM<br />

NH 4 18.03858<br />

1.1013 Ag 4 NH 4 Br0.90802<br />

2.0166 Ag 4 NH 4 Cl 0.49590<br />

0.74424 Ag 4 NH 4 I 1.3437<br />

1.9171 AgBr 4 NH 4 Br0.52161<br />

2.6792 AgCl 4 NH 4 Cl 0.37323<br />

1.6198 AgI 4 NH 4 I 0.61737<br />

1.7663 BaSO 4 4 (NH 4 ) 2 SO 4 0.56615<br />

0.81583 Br 4 NH 4 Br1.2257<br />

1.9654 Cl 4 NH 4 0.50881<br />

0.66277 Cl 4 NH 4 Cl 1.5088<br />

0.68162 HCl 4 NH 4 Cl 1.4671<br />

0.87553 I 4 NH 4 I 1.1422<br />

14.410 MgNH 4 PO 4·6H 2 O 4 NH 3 0.069398<br />

13.604 MgNH 4 PO 4·6H 2 O 4 NH 4 0.073506<br />

9.4249 MgNH 4 PO 4·6H 2 O 4 (NH 4 ) 2 O 0.10610<br />

0.82244 N 4 NH 3 1.2159<br />

0.77648 N 4 NH 4 1.2879<br />

0.26185 N 4 NH 4 Cl 3.8189<br />

0.17499 N 4 NH 4 NO 3 5.7145<br />

0.53793 N 4 (NH 4 ) 2 O 1.8590<br />

0.21200 N 4 (NH 4 ) 2 SO 4 4.7169<br />

0.94412 NH 3 4 NH 4 1.0592<br />

0.35449 NH 3 4 (NH 4 ) 2 CO 3 2.8210<br />

0.21543 NH 3 4 NH 4 HCO 3 4.6419<br />

0.21277 NH 3 4 NH 4 NO 3 4.6998

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