34S 
SELECTED ARTICLES. 
quently is. 3. But the circumstance which is decisive of 
the lime and oxide of lead not being basic in the sugar com- 
pounds is, that analogous compounds do not exist containing 
potash, or any of the strong alkaline bases of its class. No 
acid is known which forms a salt with lime or lead, that does 
not also form a salt with potash or soda; but these last, as has 
been stated, are never present in any other capacity than that 
of bases, and are thus disqualified from replacing the water or 
magnesian oxide in combination with sugar. The test of the 
non-basic character of ivater or a metallic oxide in a com- 
pound, is the absence of a parallel combination containing 
an oxide of the potash class. The fact that the combined 
water in sugar is strongly attached, and cannot be removed 
by heat, is no proof that the water is basic, for many nitrates, 
hyposulphites, &c, are known, the constitutional or superadded 
water of which cannot be removed by the same agency with- 
out destroying the salts. 
Constitution of Salts of — 
~ • • i n , r n I o yn CAcid salt 2 HO+ KO. 
Cyanunc acid Cy 3 3 +3 MO £ Neutra} HQ ^ 2 RQ 
Fulminic acid Cy 2 2 +2 MO. Salts 2 KO and KO+ Aq. , and 
CriO+KO. 
Cyanic acid Cy O + MO. 
Meconic acid C u H On+3 MO. Salts 3Aq. ; and H+2Aq.; and 
2HO+KO and HO+2 KO. 
Metameconic acid C 12 H 2 O 8 +2 MO. Salts 2 Aq.; and HO+KO and 
2 KO; also HO+Aq. 
Pyromeconic acid Cio H 3 5 + MO. 
Citric acid Cia H 5 On+3 MO. Salts 3 AqO ; 3 NaO dried at 
200° centi.; 3 PbO; 2 PbO ;+HO. 
Tartaric C 8 O 10 + 2 MO. Salts 2 KO ; HO+KO ; KO+ 
NaO. 
Racemic same. Salts same. 
Tannic acid C l8 Hs Oq +3 MO. Salts 3 PbO; 2 HO+PbO; 
and HO+2 PbO. 
Gallic acid C 7 H 3 +2 MO. Salts 2 PbO; and HO+PbO. 
Mucic Ci 2 H 8 14 +2 MO. Salts 2 KO ; HO+KO; 2 Aq. 
(M represents an atom of metal. ) 
Ibid. 
