How Sodium Metabisulfite Food Grade Is Used in Water Treatment: Practical Application Guide

Sodium Metabisulfite Food Grade (焦亚硫酸钠食品级) is one of the most widely specified disinfection, sterilization & bleaching used across municipal and industrial facilities. As a SMBS preservative, it delivers reliable performance in the scenarios our customers ask about most: Used in printing, organic synthesis, leather making; preservative, bleaching agent, loosening agent.

What Sodium Metabisulfite Food Grade Is and How It Works

Sodium Metabisulfite Food Grade is supplied as White or yellowish crystal powder. Its molecular formula is Na2S2O5 (CAS 7681-57-4). Because of this physical form it dissolves and disperses predictably, which makes dosing and process control straightforward for plant operators.

Primary Applications

Its key application areas include: Used in printing, organic synthesis, leather making; preservative, bleaching agent, loosening agent. In practice this means SMBS preservative is selected for both routine maintenance and shock-treatment programs, depending on the water matrix and treatment goal.

• Process reliability: stable active content and consistent granule/tablet size improve dosing accuracy.
• Compatibility: works within existing dosing and storage setups common to disinfection, sterilization & bleaching programs.
• Logistics: available in 25/50kg bag or drum, customized woven/kraft bag, simplifying import and warehouse planning.

Why Buyers Choose This Grade

When specifying Sodium Metabisulfite Food Grade, buyers typically compare active content, packaging and the applicable standard (GB1886.7-2015). Selecting the right grade reduces consumption and protects downstream equipment.

Operators who also run complementary programs often pair this product with Calcium Hydroxide Food Grade to cover the full treatment chain from clarification to disinfection.

Get a Quote

We supply Sodium Metabisulfite Food Grade in full container and mixed-pallet quantities with COA and MSDS for every lot. View the Sodium Metabisulfite Food Grade product page for specifications, packaging options and lead times.