Product Center
Sodium Sulfate Anhydrous CAS#7757-82-6
We offer a one-stop sourcing service for a full range of chemical products, and our professional foreign trade team provides end-to-end export services.
Phone ：+86 188 6302 9771
WhatsApp ：+86 188 6302 9771
Email ：sales@whdchem.com
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PRODUCT PARAMETERS
Packaging and Shipping
FACTORY DISPLAY
FAQ
Q：
What payment methods are accepted for new clients during their initial transaction?
A：
For new clients engaging in their first collaboration with us, we recommend a payment structure consisting of a T/T prepayment followed by the balance paid upon presentation of a copy of the Bill of Lading, or payment via Sight L/C. For small-batch trial orders (typically under a few thousand US dollars), 100% prepayment may be negotiated.
Q：
What should I do if the products encounter quality issues?
A：
Our company places a high priority on customer satisfaction. Should any quality issues arise, please provide relevant evidence promptly (such as photos, videos, third-party inspection reports, warehousing records, etc.). We will actively consult with you—in accordance with the terms of our contract—to negotiate a suitable resolution, which may include returns, replacements, supplementary shipments, or appropriate compensation. For food additives and cosmetic raw materials, we can also assist in tracing the specific production batch.
Q：
Do you provide technical support?
A：
Yes, we do. Our business team possesses specialized expertise in chemistry and can assist clients in addressing inquiries regarding product applications, formulation recommendations, technical parameters, and processing techniques. For products requiring on-site technical assistance—such as paints, water treatment agents, and cosmetic raw materials—we can coordinate with the manufacturers to provide either remote or on-site guidance.
Q：
How are hazardous materials transported?
A：
We possess extensive experience in exporting hazardous materials (such as solvents, certain resins, liquid paraffin, etc.). Based on the product's hazard class, we provide compliant hazardous material packaging (UN packaging) and the necessary Hazardous Packaging Certificate, and assist in booking cargo space for hazardous goods to ensure full compliance during shipment.
Q：
What payment methods do you accept?
A：
Our standard payment methods include:
Telegraphic Transfer (T/T): Typically 30% upfront payment, with the remaining 70% payable upon presentation of a copy of the Bill of Lading.
Letter of Credit (L/C) at Sight: We accept Letters of Credit issued by internationally recognized banks.
Western Union / MoneyGram: Accepted only for small-value sample orders.
Open Account (OA): Available exclusively to long-term partners with a proven credit history, subject to a credit assessment.
Telegraphic Transfer (T/T): Typically 30% upfront payment, with the remaining 70% payable upon presentation of a copy of the Bill of Lading.
Letter of Credit (L/C) at Sight: We accept Letters of Credit issued by internationally recognized banks.
Western Union / MoneyGram: Accepted only for small-value sample orders.
Open Account (OA): Available exclusively to long-term partners with a proven credit history, subject to a credit assessment.
Q：
What is the typical lead time for delivery?
A：
The lead times for standard products are as follows:
In-stock products: Shipped within 3–7 business days after receipt of payment.
Standard orders: 7–15 business days.
Custom/Special Specifications (e.g., specific resin grades, compounded water treatment agents): 15–25 business days.
Specific timelines are subject to the terms stipulated in the contract.
In-stock products: Shipped within 3–7 business days after receipt of payment.
Standard orders: 7–15 business days.
Custom/Special Specifications (e.g., specific resin grades, compounded water treatment agents): 15–25 business days.
Specific timelines are subject to the terms stipulated in the contract.
Q：
From which ports do you primarily ship?
A：
We primarily utilize the ports of Qingdao, Tianjin, and Shanghai; however, we can also arrange shipments from other major domestic ports—such as Ningbo, Guangzhou, and Shenzhen—according to client requirements. For inland clients, we can provide door-to-door trucking services.
Q：
What type of company is Shandong Wanhua-da New Materials Co., Ltd.?
A：
We are a comprehensive foreign trade company specializing in the international trade of chemical products. Leveraging the strengths of Shandong's chemical industry and the expertise of our professional foreign trade team, we provide global clients with one-stop procurement and export services for a wide range of chemical products—including paints and coatings, fertilizers and agricultural inputs, water treatment chemicals, synthetic resins, paraffin wax and related products, food additives, and cosmetic raw materials.
Q：
Is the company qualified to export hazardous chemicals?
A：
Yes. We hold valid licenses for the operation of hazardous chemicals and possess extensive knowledge regarding the export declaration, packaging, documentation, and transportation requirements for various hazardous materials (such as solvents, certain resins, paraffin wax, etc.), thereby ensuring that every transaction is safe and fully compliant.
Q：
Which markets does the company primarily serve?
A：
Our clients are located worldwide; our primary markets include Southeast Asia (Vietnam, Thailand, Indonesia, Malaysia), the Middle East (UAE, Saudi Arabia), Africa (Nigeria, Kenya, Egypt), Europe and the Americas (Germany, Poland, USA), as well as CIS countries.
Q：
What are the company's core products?
A：
Our company’s product portfolio spans seven major categories, detailed as follows:
Paints & Coatings: Titanium Dioxide, Iron Oxide Pigments, Acrylic/Epoxy Resins, Solvents, Curing Agents, Additives
Fertilizers & Agricultural Inputs: Urea, Diammonium Phosphate (DAP), Muriate of Potash (MOP), Potassium Sulfate, Compound Fertilizers, Ammonium Sulfate
Water Treatment Chemicals: Polyaluminum Chloride (PAC), Polyacrylamide (PAM), Scale Inhibitors, Corrosion Inhibitors, Biocides/Algaecides, Activated Carbon
Synthetic Resins: PP, PE, PVC, PS, ABS, Epoxy Resins, Unsaturated Polyester Resins
Paraffin & Wax Products: Fully Refined Paraffin, Semi-Refined Paraffin, Microcrystalline Wax, Vaseline, White Oil
Food Additives: Thickeners (Xanthan Gum, CMC), Preservatives (Sodium Benzoate, Potassium Sorbate), Sweeteners, Acidity Regulators (Citric Acid)
Cosmetic Ingredients: Humectants (Glycerin, Propylene Glycol), Surfactants (AES, 6501), Emulsifiers, White Oil, Vaseline, Functional Additi
Paints & Coatings: Titanium Dioxide, Iron Oxide Pigments, Acrylic/Epoxy Resins, Solvents, Curing Agents, Additives
Fertilizers & Agricultural Inputs: Urea, Diammonium Phosphate (DAP), Muriate of Potash (MOP), Potassium Sulfate, Compound Fertilizers, Ammonium Sulfate
Water Treatment Chemicals: Polyaluminum Chloride (PAC), Polyacrylamide (PAM), Scale Inhibitors, Corrosion Inhibitors, Biocides/Algaecides, Activated Carbon
Synthetic Resins: PP, PE, PVC, PS, ABS, Epoxy Resins, Unsaturated Polyester Resins
Paraffin & Wax Products: Fully Refined Paraffin, Semi-Refined Paraffin, Microcrystalline Wax, Vaseline, White Oil
Food Additives: Thickeners (Xanthan Gum, CMC), Preservatives (Sodium Benzoate, Potassium Sorbate), Sweeteners, Acidity Regulators (Citric Acid)
Cosmetic Ingredients: Humectants (Glycerin, Propylene Glycol), Surfactants (AES, 6501), Emulsifiers, White Oil, Vaseline, Functional Additi
Q：
How can I obtain a product quotation? What information do I need to provide?
A：
ou may contact us via our website's messaging system, telephone, email, or instant messaging tools. To ensure a quick and accurate quotation, please provide the following details:
Product Name and Specifications (e.g., purity, grade, content, particle size, etc.)
Target Purchase Quantity
Destination Port and Desired Delivery Date
Any Special Requirements (e.g., packaging, third-party testing, certification documents, etc.)
Product Name and Specifications (e.g., purity, grade, content, particle size, etc.)
Target Purchase Quantity
Destination Port and Desired Delivery Date
Any Special Requirements (e.g., packaging, third-party testing, certification documents, etc.)
Q：
What is the Minimum Order Quantity (MOQ)?
A：
Product requirements vary significantly:
Bulk commodities (e.g., paints, resins, paraffin wax, fertilizers): Generally require a minimum order of 1–5 tons; small-batch trial orders may be available for select products.
Water treatment chemicals: Standard grades are packaged in 25kg bags, with a minimum order quantity of 1 ton.
Food additives and cosmetic raw materials: Small-batch orders (25kg to 1 ton) are supported to facilitate customer sampling and testing.
Liquid chemicals (e.g., solvents, glycerin): Drummed products can be consolidated (LCL); bulk shipments require a minimum order of 20 tons.
Please consult our sales representatives for specific details.
Bulk commodities (e.g., paints, resins, paraffin wax, fertilizers): Generally require a minimum order of 1–5 tons; small-batch trial orders may be available for select products.
Water treatment chemicals: Standard grades are packaged in 25kg bags, with a minimum order quantity of 1 ton.
Food additives and cosmetic raw materials: Small-batch orders (25kg to 1 ton) are supported to facilitate customer sampling and testing.
Liquid chemicals (e.g., solvents, glycerin): Drummed products can be consolidated (LCL); bulk shipments require a minimum order of 20 tons.
Please consult our sales representatives for specific details.
Q：
How do you ensure product quality?
A：
We strictly vet our manufacturing partners, collaborating exclusively with high-quality enterprises that hold certifications such as ISO and FDA. A Certificate of Analysis (COA) is provided with every shipment. Upon customer request, we can arrange for third-party inspection agencies—such as SGS, BV, or ITS—to conduct testing and verify that the products meet international standards or specific customer requirements.
Q：
Can you provide samples?
A：
Yes. For standard products, we can provide commercial samples for customer testing. Please consult with our sales representatives to confirm our sample policy (regarding free/paid samples and freight costs). For certain hazardous materials or controlled substances, documentation regarding the intended end-use may be required.
Q：
What foreign trade services do you offer?
A：
We provide comprehensive, end-to-end export services for chemical products, including:
Contract negotiation and Letter of Credit (L/C) review
Inventory tracking and production coordination
Export booking, customs declaration, and inspection filing
Preparation of a complete set of export documents (Bill of Lading, Commercial Invoice, Packing List, COA, Certificate of Origin, Hazardous Packaging Certificate, MSDS, Health Certificate, etc.)
Assistance with preparing import clearance documents required at the destination port (e.g., sanitary certificates for food additives)
Follow-up on payment settlement
Customers simply need to confirm their orders and make payments; we professionally handle all remaining export procedures.
Contract negotiation and Letter of Credit (L/C) review
Inventory tracking and production coordination
Export booking, customs declaration, and inspection filing
Preparation of a complete set of export documents (Bill of Lading, Commercial Invoice, Packing List, COA, Certificate of Origin, Hazardous Packaging Certificate, MSDS, Health Certificate, etc.)
Assistance with preparing import clearance documents required at the destination port (e.g., sanitary certificates for food additives)
Follow-up on payment settlement
Customers simply need to confirm their orders and make payments; we professionally handle all remaining export procedures.
Q：
Are there specific documentation requirements for exporting food additives and cosmetic raw materials?
A：
Yes. Exporting food additives typically requires documents such as a Sanitary License, Production License, third-party test reports, and a Certificate of Free Sale. Cosmetic raw materials may require an MSDS, COA, and a Declaration of No Animal Testing. We are well-versed in the specific requirements of various destination ports and can assist clients in preparing a complete set of compliance documents.
Q：
Can you handle Certificates of Origin (such as FORM E, CO, etc.)?
A：
Yes. Based on client needs, we can process various types of preferential Certificates of Origin—including the General Certificate of Origin (CO), FORM E (China-ASEAN), FORM F (China-Chile), and the Asia-Pacific Trade Agreement Certificate of Origin—to help clients benefit from tariff reductions.
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