210 
SALTS. 65. Natrum. 
aniiquwum. 
cddularc. 
murorum. 
’volatile. 
SALTS. 
65. NATRUM. Of a cauflic tafte, efFervefcing 
with acids, with oil forming foap, changing bit>^ 
vegetable juices green, rendering acid ioiutioi^ 
of earths and metals turbid. 
Inodorous, dry, nearly pure. 
Natrum nudum. Syfi. not. xii. 3. p. 88. *. i, 
A^ca'i orientale. Wall./pt. 2. p. 61. n. i. 
Akali minerale. Cronft. feS 13? 11. 
Soda, Mineral alkali. SchmeiJJerminer i. p. z 66 . 
Soda. Thomjon chem. I. ^.475. 
Natron, Minsral alkali. Kirwan mineral. 2. p 6. 
Found in China, Bengal, Per/la, Syria, Egypt, South ylaert^^’ 
Denmark, Snuitzerland, and Hungary, generally during tk® 
fpring and fummer in a ftate o{ whitifh effl refcent powder, 
and moll ufuilly combined with a greater or lefs portion 01 
earth, common fait, aci 3 , and various fubllances : it is W' 
tally ibluble in water, and after evaporation runs into 4. fide“ 
prifmatic cryllals terminating each fide in a needle-like poiub 
which on expofure to the air foon moulder into a fnowy u”.' 
palpable powder; with quicklime and oil it forms foap. 
eafily melts in the fire, and with filica forms glafs. 
Inodorous, difTolved in water. 
Alcali miner, in acidulis. Wall- fyst t. p 6t. ». z. 
Found in the warm and acidulous baths of Seltzer and varioo* 
parts of Germany, and in the lakes between Alexandria 
Rofetta. 
Inodorous, mixed with carbonate of lime. 
Natrum nudum. Syst. nat, xi'i. 3. p, 88. n. 2. 
Alcali calcarea. Wall. fyft. 2. p 63. n. 3. i. 
Aphronitum. Wolfterfd. mm. 300. 
2. Natrum marmoris. Syft.nat. i. p. 161. n. i. 
Sal calcarium. It. Oel, 147. 
Found in old walls cemented by lime, and fometimes in marble 
rocks, efflorefeing like froft, and is not totally foluble in water> 
Fetid, mixed with earths and other falls. 
Alcali volatile. Cronjt. mtn. jeii, 141,2. Wall, fyfl, 
Aphronitum fceiens. Wall. 2. p. 66. *. i. Halinitron. 
Volalkali. Kirmuan mineral. 2. p. 7. 
Found in various foils, in chalk, fwineftone, argils, and ofts® 
in the natron of old walls; its odour originates in the aut' 
monia of decayed living bodies. 
