

HIGH PURITY · RELIABLE SUPPLY
Sodium Metabisulfite
(SMBS) Manufacturer
Purity in product. Confidence in process.
Backed by engineering expertise since 1992, we manufacture Technical Grade and Food Grade Sodium Metabisulfite and Sodium Bisulfite solutions.
SMBS CAPACITY
OVER 30 YEARS OF EXPERIENCE
A new production force
in basic chemicals.
Eralp began with water-treatment chemicals and expanded its manufacturing strength with a 20,000-tonne annual SMBS facility commissioned in 2026.
We combine high purity, consistent quality and process engineering support for industries ranging from water treatment to food processing.
SMBS PRODUCT RANGE
Performance engineered
for every process.
Powder and liquid options developed for industrial and food-processing requirements.
BROAD APPLICATION EXPERTISE
One molecule.
Multiple solutions.
Reliable reduction, dechlorination, oxidation-control and color-stability performance.
Water Treatment
Na₂S₂O₅ / NaHSO₃Food & Beverage
Na₂S₂O₅ / NaHSO₃Pulp & Paper
Na₂S₂O₅ / NaHSO₃Textiles
Na₂S₂O₅ / NaHSO₃Mining
Na₂S₂O₅ / NaHSO₃Chemical & Leather
Na₂S₂O₅ / NaHSO₃
2026 INVESTMENT
Controlled production.
Consistent quality.
Modern production technology, robust quality management and batch-level traceability support reliable international supply.
- 20,000 tonnes annual production capacity
- Technical Grade and Food Grade production
- Flexible packaging and logistics options
SODIUM METABISULFITE
Na₂S₂O₅
Forms bisulfite ions in water and reacts with oxidizing agents.
- CAS No.
- 7681-57-4
- Molecular weight
- 190.10 g/mol
- Appearance
- White crystalline powder
- pH (10%)
- 4.0–5.5
→ 2 NaHSO₃


