M2 Chrome Scale Calibration Weight for School Lab Factory

[Gram Weight]: 50g weight with M2 tolerance of ±10mg, 100g weight with M2 tolerance of ±16mg, 200g weight with M2 tolerance of ±30mg, 500g weight with M2 tolerance of ±80mg . 1000g weight with M2 tolerance of ±160mg, 2000g weight with M2 tolerance of ±300mg.

50g Cobalt Sulfate Heptahydrate Powder 99.9+% Purity Lab Grade

Soluble & Reactive : Excellent solubility in water, enabling seamless integration in diverse processes. Why Choose Our Cobalt Sulfate?. Electroplating : Provides durable, high-quality cobalt coatings for corrosion resistance and decorative finishes.

50g Benzotriazole Powder 99+% Purity Lab Grade

Premium Benzotriazole (BTA) – High-Purity Corrosion Inhibitor & Versatile Chemical Workhorse. A little goes a long way — effective at concentrations as low as 0.1–0.5% in many systems.Note: Benzotriazole is generally considered low-toxicity but handle with standard laboratory precautions.

25g Benzotriazole Powder 99+% Purity Lab Grade

Premium Benzotriazole (BTA) – High-Purity Corrosion Inhibitor & Versatile Chemical Workhorse. A little goes a long way — effective at concentrations as low as 0.1–0.5% in many systems.Note: Benzotriazole is generally considered low-toxicity but handle with standard laboratory precautions.