Acid Powder Dyes by Dharma Trading - Saltwater Rose

Jacquard Acid Dyes

ChemKnits: Swatching Acid Dye Powders on Yarn

Dharma Acid Dyes for Silk, Wool, and Nylon

ChemKnits: Swatching Acid Dye Powders on Yarn, Part 2

DyepotPS #49- Swatching Blue Acid Dyes: Dharma, Jacquard, Greener Shades, Paradise Fibers & ProChem!

Here is the full spectrum of Dharma acid colors dyed at 3% d.o.s. on superwash merino nylon : r/YarnAddicts

Stockholm & Leyden Papyri Dye Project – recreating the world's oldest surviving written dye methods

Fabric Dyes From Dharma Trading Co.

Acid Powder Dyes by Dharma Trading - Saltwater Rose

Dharma Fiber Reactive Procion® Dyes