Chiefly in chemistry, and as a source of the pure oxide and the subnitrate.
Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I|Arnold Cooley
The Chromate is employed in calico-printing, and the subnitrate as a paint under the name of pearl-white.
Poisons: Their Effects and Detection|Alexander Wynter Blyth
A subnitrate of didymium is formed, and remains as an insoluble residue on extracting with hot water.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
It ranks as reliable drying oil, promptly solidifying when acted upon by peroxide of hydrogen or by subnitrate of mercury.
Practical Carriage and Wagon Painting|Mayton Clarence Hillick