Do you keep stock of sodium sulphite?

We generally do not stock goods as production is based on customer orders. Storage period is less than 3 days to maintain freshness.

Can you help with import registration?

Yes, please provide your full registration document requirements, and we will check with our registration department to assist you.

Food Grade Sodium Sulfite CAS 7757-83-7

Name: Food Grade Sodium Sulfite CAS 7757-83-7
Brand: Choice Chemicals Ltd.
SKU: 1971910095

Hunan, ChinaChoice Chemicals Ltd.

US$300.00-400.00

1 Ton

Sample price:US$80.00/piece.Request sample

Product profile

Customization

Available

CAS No.

7757-83-7

Formula

Na2so3

Model NO.

Sodium sulfite

EINECS

231-821-4

Certification

ISO

Purity

98%Min.

Type

Sodium Sulfate

Appearance

Powder

Grade Standard

Industrial Grade

Purity ( as Na2so3)

98.0% Min

Application 1

Dechlorinating Agent

Application 2

Bleaching Agent

Raw Materials

Sulfur, Soda Ash

Sodium Sulphate ( So4)

1.0% Max

Water Insolubles

0.02% Max

Transport Package

25kg Per PP Bag

Specification

25kg /bag

Trademark

Choicechem

Origin

China

Key features

High Purity Raw Materials: Uses 99.8% pure imported Sulfur and 99.2% alkali soda ash for superior product quality.

Strict Quality Control: Products tested every 2 hours with third-party calibration every 3 days to ensure accuracy.

OEM Packaging Service: Supports custom OEM packages with free design services to help build your brand.

Fast Delivery Capability: Monthly output of 300MT allows most orders to be delivered within 7 to 10 days.

On-Time Delivery Guarantee: 98.9% on-time rate over 3 years with 0.25% weekly compensation for delays.

Versatile Applications: Effective as dechlorinating agent in swimming pools and bleaching agent in industry.

Food Grade Quality: Meets high purity standards with 98% min Na2SO3 content and low impurities.

ISO Certified Production: Manufacturing process adheres to ISO certification standards for reliability.

Company profile

Importers and ExportersManagement Certification

Choice Chemicals Ltd.

Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2012-06-28Nearest Port: Yueyang,China, Shanghai,ChinaAverage Response Time: ≤5.10hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAP, FCA

AI-Powered supplier vetting

SummaryChoice Chemicals Ltd. is a privately owned manufacturer/factory in Hunan, China, with 16 employees and stated production capacities for several sodium and magnesium sulfate products. It offers customization, ODM, and OEM services, and reports new-product development during the past year. The supplier has written procedures and records for service assessment, corrective/preventive actions, and complaint handling. ISO 9001:2015 certification is reported. Financial records are identified for 2021–2023, but no financial results are provided. The supplier lacks 3D software design, SDK, overseas warehouse, overseas showroom, and overseas agent or branch capabilities. No specific customer names or verifiable customer cases are provided.

Supplier typeThe supplier is identified as a Manufacturer/Factory and a private limited company in Hunan, China. Its stated business scope includes chemical product offerings together with import/export, equipment sales, information technology consulting, and technical services.

CertificationsThe supplier reports holding an ISO 9001:2015 certificate. No other certification details, scope, issuing body, or validity information are provided.

After-Sales capabilityThe supplier has written procedures and followed records for service-capability assessment, corrective and preventive actions, and customer complaint handling. However, it has no overseas warehouse, showroom, agent, or branch, which limits documented overseas service infrastructure.

R&D capabilityThe supplier reports new products during the past year and provides ODM and OEM services. Conversely, it is explicitly not a professional technical supplier, does not provide 3D software design services, and has no available SDK; therefore, innovation evidence is present but technically limited.

Production capacityThe supplier is identified as a factory and reports annual capacities of 200,000 tons of sodium metabisulphite, 50,000 tons of sodium bisulphite, 50,000 tons of sodium sulphate, and 80,000 tons of magnesium sulfate heptahydrate. These stated capacities provide explicit evidence of substantial production capability.

Customization capabilityThe supplier states that it can customize from samples and designs, provide full, minor, and flexible customization, and offer ODM and OEM services. It does not provide 3D software design services, so customization is supported but not through that specific design tool capability.

Product Q&A

Q:How is the quality of sodium sulphite controlled?

We use high purity raw materials (99.8% Sulfur, 99.2% soda ash), test every 2 hours, and conduct third-party tests every 3 days. We also use strict packaging to avoid SO2 expansion.

Q:What is the delivery time for orders?

With a monthly output of 300MT, most orders are delivered within 7 to 10 days. Please contact us with your quantity for an exact schedule.

Q:How do you ensure on-time delivery?

We maintain a 98.9% on-time delivery rate. If delivery is late, we provide compensation of 0.25% of the contract amount per week until delivery.

Q:Do you offer OEM packaging services?

Yes, we provide OEM packaging per your request and offer free package design services to help build your brand in your market.

Q:What is the MOQ for OEM packages?

The MOQ is usually 1 pallet, but we can also accept orders for just 1 drum if available.