The type segmentation of the Sodium Dichromate market distinguishes three primary grades: technical, reagent, and specialty. Technical grade, accounting for roughly 55% of total volume, is priced for bulk industrial use where purity specifications are modest, such as in large‑scale leather tanning operations. Reagent grade, representing about 30% of the market, meets tighter impurity limits (typically ≤0.5% Fe) and is preferred by metal‑finishing firms and analytical laboratories that require consistent performance in anodizing and corrosion‑resistant coatings. Specialty grade, the smallest yet highest‑value segment at approximately 15%, is formulated for niche applications like pigment manufacturing and advanced chemical synthesis, where trace‑level contaminants can affect product color or reaction pathways. Each grade contributes proportionally to overall market size by aligning price points with end‑user tolerance for purity, thereby shaping revenue distribution across the supply chain. This delineation is a core component of Sodium Dichromate segmentation analysis.