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Thiourea Dioxide

Reducing agent for textile reduction cleaning, dye processing and paper deinking formulations.

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ZXCHEM China supplier illustration of Thiourea Dioxide, white crystalline powder
PRODUCT IDENTIFICATION

Thiourea Dioxide at a Glance

ZXCHEM is a thiourea dioxide supplier and exporter in China, CAS 1758-73-2. It is supplied as white crystalline powder with ≥99.0%. It is a reducing agent for textile reduction cleaning, dye processing and paper deinking formulations. Send your application, quantity and destination for a quotation.

CAS No.1758-73-2
SynonymsFormamidinesulfinic acid
Assay / Grade≥99.0%
EC / EINECS217-157-8
HS Code293090 (indicative)
Dangerous Goods ClassClass 4.2 · UN 3341 · PG II
AppearanceWhite crystalline powder
MF (component)CH4N2O2S
MW (component)108.12 g/mol

Request a free sample for testing.

Standard lead time is approximately 14 days from order confirmation.

TECHNICAL DATA

Thiourea Dioxide Specifications

ParameterSpecification
Appearance
White crystalline powder
Purity
≥99.0 %
Residual thiourea
≤0.10 %
Moisture
≤0.05 %
Iron
≤10 ppm
Sulfate
≤0.17 %

Specifications apply to the stated grade. HS codes are indicative; final customs classification follows the shipment and destination requirements. Safety and transport entries refer to the matched reference material described in the SDS.

Commercial Information

OriginChina
MOQ1,000 kg
Packing25 kg net bags, 50 kg fiber drums or 180 kg iron drums; confirm authorized dangerous-goods packing for the consignment.
Lead timeApproximately 14 days from order confirmation
SamplesContact us for free samples

Storage & Shipping

Storage Conditions

Store dry in closed original packaging with suitable temperature control; the solid reference recommends refrigeration. Protect from sunlight and moisture. Separate from acids, strong bases and oxidizers; maintain air gaps between stacks.

Packaging integrity

Inspect the closure and liner before receipt. Keep the original label and reseal opened containers to prevent contamination.

Packaging

25 kg net bags, 50 kg fiber drums or 180 kg iron drums; confirm authorized dangerous-goods packing for the consignment.

Handling & Protection

Review the grade SDS before transfer, sampling or processing. Use suitable ventilation, protective equipment and compatible handling equipment.

What Is Thiourea Dioxide?

Thiourea dioxide (formamidine sulfinic acid), CAS 1758-73-2, is a strong reducing agent. It is used for bleaching recycled pulp and mechanical pulp, for stripping and reductive clearing in textile dyeing, and in chemical synthesis.

The crystalline grade has assay ≥99.0%, with limits on residual thiourea, moisture, iron and sulfate.

It ships as UN 3341, Class 4.2, packing group II. It is moisture-sensitive and can self-heat, so keep it dry, cool and away from oxidizers.

As a thiourea dioxide supplier and exporter in China, ZXCHEM packs the white crystals in 25 kg bags, 50 kg fibre drums or 180 kg iron drums, in approved dangerous-goods packaging.

See all papermaking additives in our catalog.

FORMULATION

Thiourea Dioxide Applications

Pulp bleaching

Reductive bleaching of recycled and mechanical pulp. Dose and temperature are set by trials.

Textile processing

Reductive clearing and colour stripping in dyeing.

Chemical synthesis

Reducing agent in specialty chemical synthesis.

WHY ZXCHEM

Why Source Thiourea Dioxide from ZXCHEM

Combined chemical orders

Source several chemical raw materials through one ZXCHEM contact. We coordinate product selection, quotations and suitable consolidated shipments so you can plan the order with one team.

Dedicated R&D Laboratory

Discuss specifications, sample results and application questions with our technical team. Our dedicated R&D laboratory supports product testing and helps clarify material selection.

Experienced Chemical Logistics

ZXCHEM has more than 30 years of experience in dangerous-goods transportation. We coordinate suitable shipments through logistics companies in which we hold equity interests in Qingdao, Shanghai, Guangzhou and Tianjin.

Dedicated Purchasing Support

Your account manager follows the order from quotation and contract signing through shipment and after-sales support. One contact coordinates technical documents, commercial details and delivery updates.

BUYER FAQ

Thiourea Dioxide FAQ

What grade of Thiourea Dioxide is listed?

The listed grade is ≥99.0%, supplied as white crystalline powder. The specification table and TDS list the quality limits. Tell us any additional method or impurity requirements when you inquire.

Can I request an evaluation sample of Thiourea Dioxide?

Yes. Send the application, target grade and test quantity, and we confirm the sample and technical documents. Read the SDS before handling or laboratory evaluation.

How is Thiourea Dioxide packed and stored?

25 kg net bags, 50 kg fiber drums or 180 kg iron drums; confirm authorized dangerous-goods packing for the consignment. Store dry in closed original packaging with suitable temperature control; the solid reference recommends refrigeration. Protect from sunlight and moisture. Separate from acids, strong bases and oxidizers; maintain air gaps between stacks. Confirm the packing selected for the quotation and destination before placing the order.

Which documents are available for Thiourea Dioxide?

Download the TDS for the listed technical grade and the reference SDS for safety and transport information. Each order comes with a batch COA; include any market or end-use requirements in your inquiry.

Request a Quote for Thiourea Dioxide

Tell us the required grade, quantity, destination port and documents. We reply within one business day.

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