According to a later patent (German patent 121422 f. Fabrik Bettenhausen Marquart and Schulz), the insoluble metarabin is converted into soluble arabin by heating the desaccharized beet-root slices with phosphoric acid and water. According to a supplement to this patent (122048), conversion is effected by heating the slices with aqueous solutions of organic acids and phenols, or the acid salts of oxalic, tartaric or phosphoric acids.


INDEX.


Transcriber's Notes

Obvious typographical errors have been silently corrected. Variations in hyphenation have been standardised but all other spelling and punctuation remains unchanged.

The following corrections have been made:

From
[III.] 3Ca(PO3)2 + 10C = 10CO + Ca3(PO4)2 = P2
to
III. 3Ca(PO3)2 + 10C = 10CO + Ca3(PO4)2 + P4

From [3Ca](PO3)2 + 5Ca2 = Ca3(PO4)2 + 10CO + 4P.
to
3Ca(PO3)2 + 10C = Ca3(PO4)2 + 10CO + 4P.