Caustic Soda Flakes 98–99% Supplier — Vadodara, Gujarat

Caustic soda flakes (NaOH 98–99%) cover mercerisation, pulp cooking, biodiesel transesterification, and ETP pH correction across Gujarat's chemical belt. Drashti Chemicals stocks flakes with a batch COA for NaOH assay and chloride — the two numbers plant chemists check before incoming QC.

Flake vs. lye vs. prills: flakes store and handle more safely than 48% lye in plants without bunded tanks; prills flow better in pneumatic conveyors. For manual dissolution in SS316 day tanks, flakes typically dissolve in 30–45 minutes at 40 °C with agitation. Specify a low-iron grade for rayon or aluminium anodising lines where iron stains product.

Dissolution protocol: add flakes to water, never water to flakes — the exotherm can flash-boil and spray caustic. Target 30–50% stock solution for dosing pumps; higher concentrations crystallise in winter lines. Dose rate for neutralisation depends on acid load — typical textile ETP acid wash discharge needs 200–800 mg/L NaOH. Use inline pH probe with fail-safe overflow return. Drashti provides dissolution SOP sheet with first order.

Packaging: 50 kg HDPE bags (standard), 25 kg bags for smaller plants. MOQ one bag; bulk quote on request for monthly 5 MT+ contracts with scheduled delivery to Bharuch, Ankleshwar, and Vapi. MSDS and COA per lot. GST-compliant invoice from Vadodara. Store sealed in dry warehouse — flakes pick up moisture and fuse into blocks that damage dissolution tank agitators.

Caustic flakes vs. soda ash for pH control: caustic gives immediate pH jump without CO₂ off-gassing; soda ash is safer for operators and adds buffering. Caustic vs. lime: caustic costs more per kg OH⁻ but produces no calcium sludge. For CIP in dairy and brewery plants, food-grade caustic lye may be mandated over industrial flakes — confirm your audit requirement before ordering industrial grade.