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1 TIYOSÜLFATLAR Tiyosülfatlar tiyosülfürik asitin tuzlaridir ...

1 TIYOSÜLFATLAR Tiyosülfatlar tiyosülfürik asitin tuzlaridir ...

1 TIYOSÜLFATLAR Tiyosülfatlar tiyosülfürik asitin tuzlaridir ...

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Sodyum tiyosülfatin sudaki çözünürlükleri<br />

Solid phase Ice Na 2 S 2 O 3 · 5 H 2 O Na 2 S 2 O 3 · 2 H 2 O Na 2 S 2 O 3 · 0.5 H 2 O Na 2 S 2 O 3<br />

T, °C –3.9 –11 0 20 40 48 50 60 65 70 75 80 100<br />

wt % 15.0 30.0 34.4 41.2 50.6 62.0 62.9 67.4 69.5 70.0 70.8 71.0 72.7<br />

Sodyum tiyosülfatin özellikleri<br />

Na 2 S 2 O 3 · 5 H 2<br />

O<br />

Na 2 S 2 O 3<br />

M r 248.17 158.10<br />

Crystal system monoclinic monoclini<br />

c<br />

r at 25°C, g/cm 3<br />

Specific heat capacity at 0° C, J kg –1<br />

K –1<br />

Heat of fusion, kJ/kg 148.1<br />

Heat of solution at 25°C, kJ/kg 190.6<br />

Heat of hydration at 18°C, kJ/mol 55.7<br />

Enthalpy of formation, kJ/mol 2 601<br />

1.749 2.267<br />

1 453 924<br />

Na 2 SO 3 ve Na 2 S 2 O 5 ‘in sicakligin bir fonksiyonu olarak sudaki<br />

çözünürlükleri<br />

4

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