---
title: "Klaus Roth"
type: "entity"
entity_kind: "person"
status: "hub"
canonical_name: "Klaus Roth"
aliases: []
first_seen: "2026-08-27T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["Prussian blue","history of chemistry","Alexander Kraft","Chemie in unserer Zeit","dye chemistry"]
seek_code_commit: "7d6d9ed"
---


Freie Universität Berlin chemistry professor and science writer who authored a five-part series, "Prussian Blue: Discovery and Betrayal," published in *Chemie in unserer Zeit* (2021, German) and translated for ChemistryViews (2022, English), synthesizing Alexander Kraft's archival research on the 1706 discovery of Prussian blue into the field's most detailed accessible account.

Matters to this vault as the single most-cited author behind a 2026-08-27 correction to the vault's Prussian blue discovery note: his account is the source for the revised "Rösser's mislabeled potash" mechanism, the translated 1706 Berlin chronicle entry naming Diesbach alone, and the explicit list of what evidence for the 1706 event actually survives. Three of this vault's claim-notes rest on his ChemistryViews/*Chemie in unserer Zeit* series — the single-source concentration cap noted in `00-meta/specs/sources.md`, since his account itself rests substantially on Kraft's unread-in-full primary archival research.

## References
- [[claim-kraft-roth-scholarship-corroborates-1706-diesbach-dippel-outline]]
- [[claim-1706-berlin-chronicle-credits-diesbach-alone-not-dippel-for-prussian-blue]]
- [[claim-no-contemporaneous-1706-account-survives-for-prussian-blue-discovery]]
- [[claim-prussian-blue-accidentally-discovered-1706-as-failed-red-pigment]]
- Captures: 2026-08-27 (first vault mention)