Import Pulp Bleaching Agent Fas — Buy in wholesale FOB from Supplier in Hong Kong
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Pulp Bleaching Agent FAS
Pulp Bleaching Agent FAS is a technical‑grade formamidine sulfinic acid (thiourea dioxide) used as a reducing agent in pulp and paper bleaching. The chemical formula is C2H6N2O2S and the product is supplied with a minimum purity of 97 %. It is packaged in either 25 kg bags or 1000 kg jumbo bags for bulk handling. The agent is suitable for both elemental‑chlorine‑free (ECF) and totally‑chlorine‑free (TCF) bleaching sequences.
In the pulp industry, thiourea dioxide is valued for its high reducibility and stability under typical bleaching temperatures up to 80 °C. Typical moisture content for this grade is below 1 % to maintain reactivity. Standard safety data sheets accompany each shipment, detailing handling precautions and personal protective equipment requirements. The agent can also be employed in textile dyeing, leather processing and polymer synthesis where a strong reducing environment is needed.
Potential buyers such as paper mills, textile factories and chemical distributors should verify the certificate of analysis for each batch. Because the listing does not state lead time, MOQ or payment terms, importers must request these details from Henan Langrui Chemical Co. Ltd. Confirm that packaging meets the intended transport mode and that any customs classification aligns with local regulations.
| Chemical name | Formamidine Sulfinic Acid (Thiourea Dioxide) |
| Chemical formula | C2H6N2O2S |
| Minimum purity | 97 % |
| Typical moisture content | Typical <1 % |
| Standard packaging sizes | 25 kg bags, 1000 kg jumbo bags |
| Applicable bleaching processes | ECF and TCF pulp bleaching |
| Typical operating temperature | Standard up to 80 °C for continuous bleaching |
| Safety documentation | Standard Safety Data Sheet (SDS) provided |
| Typical bulk density | Typical 1.2 t/m³ |
| Typical reduction potential | Typical 0.6 V (vs. SHE) for high‑temperature bleaching |
Henan Langrui Chemical Co. Ltd. operates from 513 Top Enterprise, No. 19 Minhang Road, Zhengzhou, Henan, China, with a registered address that also references Hong Kong. The supplier holds a harbor trust tier, and its platform response metrics indicate no recent replies to buyer inquiries.
The company manufactures thiourea dioxide and supplies it as Pulp Bleaching Agent FAS in bulk packaging. No further details about years in operation, employee numbers or quality certifications are disclosed in the listing, so importers are advised to obtain those documents directly from the supplier.
Pulp Bleaching Agent FAS (Formamidine Sulfinic Acid) is a high-performance reducing agent widely used in pulp and paper mills for elemental chlorine-free (ECF) and totally chlorine-free (TCF) bleaching processes. This thiourea dioxide-based chemical is also applied in textile dyeing, leather processing, and polymer synthesis. Supplied in technical grade with minimum 97% purity, it offers excellent stability and controlled reduction potential for achieving high brightness pulps. Available in 25kg bags or 1000kg jumbo bags for convenient handling in industrial operations.
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Sourcing Pulp Bleaching Agent FAS from Henan Langrui Chemical Co. Ltd. - Hong Kong Import Guide
Before committing to a purchase of Pulp Bleaching Agent FAS, purchasers should ask for a current Certificate of Analysis and the latest safety data sheet to confirm the 97 % minimum purity and to review any impurity limits. Request a batch test report that documents the reduction potential and moisture content. Verifying the packaging integrity of the 25 kg bags or jumbo bags is also essential.
Buyers must agree on the Incoterm, for example FOB Zhengzhou port or CIF Shanghai, and obtain the expected lead time for bulk shipment. The supplier’s listing does not state a minimum order quantity or payment schedule, so these parameters should be clarified in the contract. Typical payment structures in the chemical trade include T/T 30 % deposit with balance against documents, or an irrevocable L/C at sight.
An on‑site or remote third‑party inspection can confirm the agent’s moisture level, bulk density and compliance with environmental standards. Ask the supplier for the batch‑wise analytical report and for evidence that the product meets the standard for high‑temperature continuous bleaching. Retaining the certificate of analysis and the safety data sheet will facilitate customs clearance and downstream quality control.
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30 suppliersBuy Pulp Bleaching Agent Fas in Bulk — Verified Supplier in Hong Kong
When sourcing Pulp Bleaching Agent Fas for your business, securing the right balance of quality and cost is essential. Henan Langrui Chemical Co. Ltd., a verified supplier based in Hong Kong, offers this product with key specifications including Industrial / Technical Grade, Min. 97% Formamidine Sulfinic Acid (FAS), and White Crystalline Powder. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1,8002,200./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 2930.90, making it a staple in the Industrial Chemicals sector with strong demand from importing countries worldwide.
Pulp Bleaching Agent Fas Specifications, Trade Terms & Pricing
Importing Pulp Bleaching Agent Fas requires careful attention to shipping logistics, customs compliance, and secure payment terms. Henan Langrui Chemical Co. Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 2930.90 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
About Henan Langrui Chemical Co. Ltd. — Supplier in Hong Kong
Finding trustworthy partners is the foundation of successful importing. The supplier of this Pulp Bleaching Agent Fas has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Industrial Chemicals category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Pulp Bleaching Agent Fas — Shipping, Logistics & Customs
Importing Pulp Bleaching Agent Fas requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 2930.90 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Pulp Bleaching Agent Fas
What is the wholesale price of Pulp Bleaching Agent Fas?
The current listed wholesale price for Pulp Bleaching Agent Fas from Henan Langrui Chemical Co. Ltd. is $1,8002,200./Unit on FOB terms from Hong Kong. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Henan Langrui Chemical Co. Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Pulp Bleaching Agent Fas?
The supplier, Henan Langrui Chemical Co. Ltd., has set a Minimum Order Quantity (MOQ) of 1 Unit for Pulp Bleaching Agent Fas. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Pulp Bleaching Agent Fas?
For international shipping and customs clearance, Pulp Bleaching Agent Fas is classified under HS Code 2930.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Pulp Bleaching Agent Fas from Hong Kong?
To import Pulp Bleaching Agent Fas from Hong Kong, negotiate shipping terms (FOB, CIF, or EXW) directly with Henan Langrui Chemical Co. Ltd.. Ensure you have the necessary import licenses for Industrial Chemicals products in your destination country.
Is Henan Langrui Chemical Co. Ltd. a verified supplier?
Yes, Henan Langrui Chemical Co. Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Pulp Bleaching Agent Fas?
The key specifications for Pulp Bleaching Agent Fas supplied by Henan Langrui Chemical Co. Ltd. include Industrial / Technical Grade, Min. 97% Formamidine Sulfinic Acid (FAS), and White Crystalline Powder. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Pulp Bleaching Agent Fas?
Henan Langrui Chemical Co. Ltd. offers Pulp Bleaching Agent Fas with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Pulp Bleaching Agent Fas the most?
Pulp Bleaching Agent Fas is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Henan Langrui Chemical Co. Ltd. through our platform.
What certifications does this Pulp Bleaching Agent Fas supplier hold?
Henan Langrui Chemical Co. Ltd. maintains international quality certifications. These ensure that the Pulp Bleaching Agent Fas meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Pulp Bleaching Agent Fas on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Henan Langrui Chemical Co. Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Henan Langrui Chemical Co. Ltd..
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