Potassium Meta Bi Sulphite (PMBS)
White crystalline powder · CAS 16731-55-8
DocumentsSpec sheet (PDF, 32 KB)Safety Data Sheet (PDF, 79 KB)
Overview
Potassium Meta Bi Sulphite (PMBS) (CAS 16731-55-8) is one of the specialty chemicals products Suraj Chemicals supplies to industrial, institutional and manufacturing buyers across India from our Chennai base. It is commonly used for preservative and reducing agent in food/beverage processing (technical grade); water-treatment de-chlorination; wine-making sterilant, among other applications in the specialty chemicals category. We pack Potassium Meta Bi Sulphite (PMBS) in 30 kg drums, and can arrange bulk, drum or tanker quantities for larger requirements — full characteristics, applications and downloadable documentation are below, or you can request a quote directly.
Specification Sheet — Characteristics
Download Specification Sheet (PDF)| Characteristics | Specifications |
|---|---|
| Assay (Total Purity) | 97.18% |
| pH of 10% Solution | 4.85 |
| Clarity of 10% Solution | Clear |
| Arsenic | 5 ppm Max |
| Lead as Pb | 5 ppm Max |
| Iron as Fe | 20 ppm Max |
| Heavy Metals | 40 ppm Max |
These values come from our own lab test on Potassium Meta Bi Sulphite. They vary slightly from batch to batch, so ask for a current certificate of analysis with your order.
Applications
- Preservative and reducing agent in food/beverage processing (technical grade)
- Water-treatment de-chlorination
- Wine-making sterilant
- Photographic and textile processing reducing agent
Safety & Handling Summary
| Topic | Summary |
|---|---|
| Signal word | Warning |
| GHS hazards | H302 — Harmful if swallowed H315 — Causes skin irritation H319 — Causes serious eye irritation H335 — May cause respiratory irritation H031 — Contact with acids liberates toxic gas (sulphur dioxide) |
| Incompatible with | Acids, strong oxidizing agents |
| Gloves | Chemical-resistant protective gloves |
| Eye / face | Chemical safety goggles |
| Respiratory | Respirator with particulate/acid-gas (SO2) cartridge if dust or fumes are generated or exposure limits are exceeded |
| Body | Protective clothing; safety shower and eyewash station should be available. 9. PHYSICAL AND CHEMICAL PROPERTIES Information on basic physical and chemical properties Appearance Physical state at 20°C Solid Appearance White … |
| Transport (road) | Confirm the shipping classification with us before dispatch — see Section 14 of the SDS |
| Emergency handling | First aid, fire-fighting and spill / release measures are in Sections 4–6 of the SDS. Emergency contact: +91 70927 22822 / +91 98402 84032. |
A summary of the Potassium Meta Bi Sulphite Safety Data Sheet. The full SDS is the authority: download it at the top of this page and read it before first use. Hazard ratings can change with grade and concentration, so confirm the transport class for each consignment.
Frequently Asked Questions
What is Potassium Meta Bi Sulphite (PMBS)?
Potassium Meta Bi Sulphite is supplied by Suraj Chemicals as white crystalline powder, identified by CAS number 16731-55-8. It falls under our Specialty Chemicals range — see the Specification Sheet table above for its full characteristics.
What is Potassium Meta Bi Sulphite used for?
Typical applications include: Preservative and reducing agent in food/beverage processing (technical grade); Water-treatment de-chlorination; Wine-making sterilant; Photographic and textile processing reducing agent.
How should Potassium Meta Bi Sulphite be stored and handled?
Store sealed in a dry, cool area away from moisture and oxidizers.
What packaging and pack sizes does Suraj Chemicals supply Potassium Meta Bi Sulphite in?
30 kg drums. Contact us if you need a different pack size, or a bulk/tanker quantity.
What is the shelf life of Potassium Meta Bi Sulphite?
Typically 3–6 months from date of manufacture when stored sealed, in a cool place away from direct sunlight and heat. Active content in hypochlorite / oxidising products declines gradually over time, so this is one to watch closely. As with any industrial chemical, request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.
Is Potassium Meta Bi Sulphite hazardous to handle?
Yes. Potassium Meta Bi Sulphite is classified under GHS (signal word: Warning) as: harmful if swallowed (H302); causes skin irritation (H315); causes serious eye irritation (H319); may cause respiratory irritation (H335); contact with acids liberates toxic gas (sulphur dioxide) (H031). Follow the storage and handling guidance above, use appropriate PPE, and download the Safety Data Sheet (SDS/MSDS) in the sidebar above for full GHS hazard, handling and PPE details.
Is a Specification Sheet, TDS or MSDS available for Potassium Meta Bi Sulphite?
Yes. a downloadable Specification Sheet (PDF) with full characteristics and specifications is available above, and a downloadable Safety Data Sheet (SDS/MSDS) for Potassium Meta Bi Sulphite is also available above.
Can I get a sample or discuss order quantity for Potassium Meta Bi Sulphite?
Yes. use the Request Price & Availability button or WhatsApp us with your required quantity, and our team will confirm pricing, minimum order quantity, sample availability and delivery timelines for Potassium Meta Bi Sulphite.
Actual packaging as supplied by Suraj Chemicals
CAS Number
16731-55-8
Also Known As
Potassium Metabisulfite, PMBS, Potassium Pyrosulfite
Appearance
White crystalline powder
Packaging
30 kg drums
Storage & Handling
Store sealed in a dry, cool area away from moisture and oxidizers.
Shelf Life
Typically 3–6 months from date of manufacture when stored sealed, in a cool place away from direct sunlight and heat. Active content in hypochlorite / oxidising products declines gradually over time, so this is one to watch closely. As with any industrial chemical, request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.