Analysis of and Formula for Making. - Ahrwei-ler, Germany. Mean of Eight Analyses made in 1877. (Parts in Ten Thousand.)

Analysis.

Soda carbonate.......9.5555

Sodium chloride......3.7645

Soda sulphate.......2.12425

Magnesia carbonate....3.775

Lime carbonate.......2.608

Iron oxide with alumina.... 0.0685 Silica..................... 0.137

Total...........22.03275

Volatile constituents : Free and semi-combined car bonic acid..........27.76

Combined carbonic acid.... 8.07

Total...... 35.83

Imitation. For 10 gallons of water = 80 lbs.

Grains.

Sodium carbonate........2118.4

Sodium sulphate........ 287.5

Sodium silicate......... 17.1

Calcium chloride........ 177.9

Magnesium chloride....... 29.7

Aluminium chloride......, 5.5

Magnesium carbonate, hydr... 337.8

Iron sulphate.......... 7.2