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preface to fifteenth edition

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TABLE 3.2<br />

Physical Constants of Inorganic Compounds (Continued)<br />

Name Formula Formula weight Density<br />

Melting point,<br />

C<br />

Boiling point,<br />

C<br />

Solubility in<br />

100 parts solvent<br />

3.40<br />

Nickel (continued)<br />

carbonyl Ni(CO) 4 170.73 1.31 19.3 43 (expl 60) s EtOH, bz, acet<br />

chloride NiCl 129.60 3.51 1009 subl 973 61 g/100 mL 20 aq<br />

chloride 6-water NiCl 2 ·6H 2 O 237.69 100 g/100 mL 20 aq; s alc<br />

cyanide 4-water Ni(CN) 2 ·4H 2 O 182.79 anhyd 400 0.006 18 aq; s KCN, NH 4 OH<br />

dimethylglyoxime Ni(HC 2 H 6 N 2 O 2 ) 2 288.92 subl 250 i aq; s abs alc, dilute acids<br />

(tri-) disulfide Ni 3 S 2 240.21 5.87 790 d 2967 s HNO 3<br />

fluoride NiF 2 96.69 4.72 1450 1740 4 g/100 mL 20 aq; i alc, eth<br />

formate 2-water Ni(CHO 2 ) 2 ·2H 2 O 184.78 2.154 20 anhyd 130 d 180–200 s aq; i alc<br />

nitrate 6-water Ni(NO 3 ) 2 ·6H 2 O 290.81 2.05 56.7 136.7 150 g/100 mL 20 aq<br />

(II) oxide NiO 74.71 7.45 2000 s acids<br />

(III) oxide Ni 2 O 3 165.42 4.83 O 2 , 600 s hot HCl, HNO 3 ,H 2 SO 4<br />

sulfate NiSO 4 154.78 3.68 SO 3 , 840 29 g/100 mL 0 aq<br />

sulfate 6-water NiSO 4 ·6H 2 O 262.86 2.07 anhyd 280 40 g/100 mL 20 aq<br />

sulfide NiS 90.77 5.3–5.6 976 d 2047 s HNO 3 , KHS<br />

tetracarbonyl Ni(CO) 4 170.74 1.3185 17 19.3 42.3 explodes 63; FP 4; s organic solvents<br />

Niobium Nb 92.9064 8.57 20 2468 4860 s fused alkali hydroxides<br />

(V) chloride NbCl 5 270.20 2.75 206 247.0 s HCl, CCl 4<br />

(V) fluoride NbF 5 187.91<br />

80<br />

2.696 4 80.0 234.9 hyd aq, alc; sl s CS 2 ,CCl 4<br />

(V) oxide Nb 2 O 5 265.82 4.55 1512 s HF, hot H 2 SO 4<br />

Nitrogen N 2 28.0341 1.165 g/L 20 210.01 195.79 mL/100 mL: 1.6 20 aq, 0.112 alc<br />

15<br />

N 2 30.01 1.25 g/L 20 209.952 195.73<br />

(I) oxide N 2 O 44.02 1.843 g/L 20 90.81 88.46 130 0 mL aq; s alc, eth<br />

(II) oxide NO 30.01 1.249 g/L 20 163.64 151.76 4.6 mL/100 mL 20 aq<br />

(III) oxide N 2 O 3 76.02 1.447 g/L 2 100.7 2 s eth<br />

(IV) oxide dimer N 2 O 4 92.02<br />

20<br />

1.448 4 9.3 21.15 d s conc HNO 3 , conc H 2 SO 4 , chl<br />

(V) oxide N 2 O 5 108.01 2.05 30 47.0 v s chl; s CCl 4<br />

selenide N 4 Se 4 371.87 4.2 explosive sl s bz, CS 2<br />

sulfide N 4 S 4 184.28 2.24 18 180 185 s organic solvents<br />

trichloride NCl 3 120.37 1.653 20 27 71 i aq; s bz, CS 2 ,CCl 4<br />

trifluoride NF 3 70.01 2.96 g/L 20 208.5 129.06

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