Table 2-12. Common dissolution reagent parameters

Reagent

B.pt.

(°C)

Density

at 25°C

(g mL-1)

Molarity

(mol L-1)

% reagent

(w/w)

pKa (aq)

(mol L-1)

Dielectric constant

of pure substance

Nitric acid (conc)

122

(1-3)

1.410 (3) 15.5 (3) 69.2 (3) -1.4 (2) 50 ± 10 at 14°C (2)
Hydrochloric acid (conc)

109

(1, 2)

1.18 - 1.19 (3) 11.73 (3) 36 - 38% (1) -6.1 (4) 4.60 at 28°C (4)
Sulfuric acid (conc)

339

(1, 3)

1.84 (1, 3) 18.3M (3) 96 - 98% (1, 3)

1. ~ -3 (4)

2. 1.92 (4, 5)

100 at 25°C (2, 4)
Perchloric acid (68-72%)

203

(1-3)

1.72 (3) 11.7 (4) 72.4 (3) ~ -10 (2) -
Hydrofluoric acid (conc) 112 (38.3%) (1-3) 1.138 (2, 3) 21.5 - 29 (1, 3) 38 - 48 (1, 3) 3.1 - 3.45 (1, 5) 83.6 at 0°C (4)
Phosphoric acid (conc)

158 (85%)

261 (98%) (3)

1.71

(85%)

1.86 (98%) (3)

14.7 (85%) (5) 85 - 98% (3)

1. 2.15

2. 7.20

3. 12.37 (2, 4, 5)

-
Hydrogen peroxide (30%)

107 (30%)

115 (50%) (3)

1.111 (30%)

1.196 (50%) (3)

(9.7)

30% -

50% (3)

11.6 (4, 5)

70.7 (100%)

121 (35%) (2)

 Water (18 Ohm)

100

1.00

(55.51)

- -

- -

 78.4 (2,4)

References:

-1 Sulcek, Z.; Povondra, P. Methods of Decomposition in Inorganic Analysis; CRC Press: Boca Raton, 1989.
-2 Greenwood, N. N.; Earnshaw, A. ; Pergamon Press: Oxford, 1984, pp 1064-1068.
-3 Bock, R. A Handbook of Decomposition Methods in Analytical Chemistry, 1st ed.; John Wiley and Sons: New York, 1979.
-4 Dean, J. A. ; McGraw-Hill Book Company: New York, 1979.
-5 Weast, R. C. ; CRC Press: Cleveland, 1973.

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