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High Purity Sodium Formaldehyde Sulfoxylate Blocks for Textile Dyeing
US$2,315.00
1-19 Tons
US$2,305.00
20-49 Tons
US$2,295.00
50+ Tons
Sample price:US$30.00/kg.Request sample

Product profile

Customization

Available

CAS No.

149-44-0

Formula

Nahso2CH2o2H2O

Model NO.

SFS lump

EINECS

205-739-4

Appearance

Lump

Classification

Reducing Agent

Certification

N/a

Purity

90%~99%

Type

Sodium Formaldehyde Sulfoxylate

Grade Standard

Industrial Grade

Product Appearance

White Lump

Solubility

Freely Soluble, Slow Dissolution Rate

Sulphide

No Black

pH(2%Water Solution )

≥ 9.80

Odor

Odorless or a Little

Storage Stability

Hygroscopic; Cool, Dry, and Airtight Storage

Bulk Density

High (Heavier Mass Per Unit Volume)

Active Oxygen Content

≥6.5%

Moisture Content

≤0.5%

Iron (Fe) Content

≤10 Ppm

Melting Point

Decomposes Before Melting

Decomposition Temperature

>60°C

MOQ

1 Ton

Lead Time

7 to 10 Days After Order Confirmation

Trade Term

EXW/Fob/CFR/CIF/DAP

Transport Package

50kg/Drum

Specification

≥ 98%

Trademark

XZH

Origin

China

HS Code

2831102000

Production Capacity

Annual Output Is 200, 000 Tons

Key features

High Purity Reducing Agent: Industrial grade with 90%-99% purity, ideal for textile dyeing and organic synthesis.
Effective Discharge Printing: Creates sharp, high-contrast patterns on cotton, hemp, and artificial silk fabrics.
Polymer Synthesis Agent: Acts as a terminating agent for SBR and neoprene, ensuring controlled polymerization.
Versatile Product Forms: Available as white crystalline powder or dense white lumps for different handling needs.
Flexible Customization: Supports minor customization, design-based customization, and sample-based customization.
Secure Global Packaging: Sealed HDPE drums with moisture-proof liners to prevent hygroscopic degradation.
Fast Lead Time: Standard delivery within 7 to 10 days after order confirmation.
Trusted Supplier: Established in 2009 with 16 years of export experience and regional support branches.

Company profile

Shenyang Xingzhenghe Chemical Co., Ltd.
Years of Export ExperienceExperienced TeamExhibition ExperienceFast Delivery
CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 16 Years CertifiedNearest Port: Dalian PortAverage Response Time: ≤2.17h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory and limited company in Shenyang, with five employees and a wholesale and retail industry classification. It holds a valid import and export license, has 16 years of export experience, and offers multiple trade terms. Customization services are available, including customization from designs and samples, while OEM services for well-known brands are reported. However, the supplier reports no new products in the past year, no ODM service, no SDK availability, and no overseas warehouses, showrooms, agents, branches, or offline trade-show participation. Service-management documentation is incomplete: procedures for assessment exist, but there are no approved-supplier lists, corrective/preventive-action procedures, or written complaint-handling procedures. Certification holdings, production scale, financial credibility, and customer cases are not sufficiently evidenced. No financial figures are included.
Supplier typeThe supplier is explicitly described as a factory and a limited company located in Shenyang, with five employees and no associated company group. Its stated industry classification is wholesale and retail, while its business scope includes building ceramics, fertilizers, daily goods, chemicals, disinfectants, machinery, and office products.
After-Sales capabilityThe supplier has written procedures and records for assessing service capability and reports a one-month average lead time in both peak and off-season periods. However, it has no written corrective/preventive-action procedures or customer-complaint handling procedures, and it reports no overseas warehouse, showroom, agent, branch, or offline trade-show experience.
R&D capabilityThe supplier reports no available SDK, no new products in the past year, and no ODM service. It does report one internationally recognized design award, but the broader evidence indicates limited demonstrated recent innovation capability.
Customization capabilityThe supplier explicitly offers flexible customization, minor customization, customization from designs, and customization from samples. It also provides OEM services for well-known brands, although it does not provide ODM services.

Product Q&A

Q:What is the purity and grade of this product?
A:
It is Industrial Grade Sodium Formaldehyde Sulfoxylate with a purity ranging from 90% to 99%.
Q:What are the main applications of Rongalite?
A:
It is primarily used as a discharge agent in textile printing, a reducing agent in polymer synthesis (SBR, neoprene), and for bleaching fabrics.
Q:What forms is the product available in?
A:
It is available as white fine crystalline powder (fast dissolution) or white lumps (slow dissolution, high bulk density).
Q:What are the packaging options?
A:
Powder comes in 25kg composite woven bags or 50kg HDPE drums. Blocks come in 50kg sealed HDPE drums with inner moisture-proof bags.
Q:What are the payment and trade terms?
A:
We accept T/T and L/C. Trade terms include EXW, FOB, CFR, CIF, and DAP.

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