High Purity Sodium Sulfite, Stable Quality & Competitive Price

Name: High Purity Sodium Sulfite, Stable Quality & Competitive Price
Brand: Changsha Weichuang Chemical Co., Ltd.
SKU: 1993464531

Hunan, ChinaChangsha Weichuang Chemical Co., Ltd.

US$400.00-430.00

20 Tons

Product profile

Customization

Available

CAS No.

7757-83-7

Formula

Na2so3

EINECS

231-821-4

Appearance

Crystal or Powder

Classification

Sulfate Salt

Certification

ISO

Purity

90%~99%

Type

Sulfate

Grade Standard

Tech Grade

Sample

Available

Application

Paper Pulps,Textiles,Mining,Waste Water Treatment

Shelf Life

One Year

Lead Time

15 Days

Water Solubility

Easily Soluble in Water

Storage Condition

Keep in Cool, Dry, and Ventilated Place

Molecular Weigh

126.043

Density

2.63G/Cm³

Melting Point

251.8 °C

Transport Package

25kg Woven Bag/ 1.25mt Bag

Specification

90% min - 98% min

Trademark

Weichuang

Origin

China

HS Code

2832100000

Production Capacity

3000 Tons/Month

Key features

High Purity Options: Available in Tech Grade with purity ranging from 93% to 97% minimum.

Wide Application Range: Used for paper pulps, textiles, mining, wastewater treatment, and chemical synthesis.

Customizable Packaging: Standard 25kg bags or 1000-1250kg jumbo bags; other packings customizable.

Fast Delivery: Standard lead time of 15 days for all orders.

ISO Certified Quality: Manufactured under ISO certification with stable quality and mature craft.

Free Sample Available: Free samples provided; customer only pays for freight charges.

High Production Capacity: Monthly capacity of 3000 metric tons per product line.

Global Market Reach: Products exported to USA, Europe, Canada, Japan, Thailand, and South Korea.

Company profile

Changsha Weichuang Chemical Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤1.40h

AI-Powered supplier vetting

SummaryChangsha Weichuang Chemical Co., Ltd. is a China-based limited trading company established in 2007 with nine employees. It offers several chemical products and holds an ISO9001:2015 certificate. Service procedures for corrective actions, customer complaints, supplier approval, and service assessment are documented and followed, while overseas service coverage is absent. The supplier reports ODM, OEM, and sample/design customization capabilities, but no new products were developed in the past year and no SDK is available. Export sales represent 71%–90% of total sales, with self-managed import/export rights, although exporting began only one year ago. Lead times are stated as within 15 working days in both peak and off-season periods. Financial records are identified for 2022–2024, but no financial results are provided. Production capacity, raw-material traceability, and customer-specific cases are not sufficiently documented.

CertificationsThe supplier holds an ISO9001:2015 certificate. A BV audit report is listed with validity from September 30, 2025 to September 29, 2026, but the audit result is recorded as “0” without an explanation of its meaning.

After-Sales capabilityDocumented and followed procedures exist for corrective and preventive actions, customer complaints, supplier approval, and service-capability assessment. However, the supplier has no overseas showroom, overseas agent or branch, or offline trade-show participation, and reports service coverage in zero countries.

R&D capabilityThe supplier reports one year of total R&D-engineer experience, no new product development in the past year, and no available SDK. It does offer ODM services, indicating some design-development support, but the evidence does not demonstrate strong ongoing innovation.

Customization capabilityThe supplier explicitly offers ODM services, OEM services for popular brands, and customization from samples and designs. These statements provide direct evidence of customization capability, although no project scale or technical details are supplied.