Separative

[…] that much more full and eminent Experiment of the Separative Virtue of extream Cold, that was made, against their Wills, by the […] Dutch men that Winter’d in Nova Zembla;

Source: wiktionary

We have hitherto only observed the colouring substance itself, we ought now to consider the preparation of the ground which receives it: to inquire how it comes that every object hath this separative power over the particles of light; how it imbibes one colour, while it copiously reflects another?

Source: wiktionary

Jews christianizing—Christians judaizing—puzzle me. I like fish or flesh. A moderate Jew is a more confounding piece of anomaly than a wet Quaker. The spirit of the synagogue is essentially separative.

Source: wiktionary

He concluded very naturally that the boy had come to some crisis in his unfortunate entanglement with Madeleine Philips, and he was flattered by the trustfulness that brought the matter to him. He resolved to be delicate but wily, honourable, strictly honourable, but steadily, patiently separative.

Source: wiktionary