Industrial Chemicals Supplier for Reliable Bulk Sourcing
Longfeng Chemical supplies industrial chemicals to international customers, with a portfolio covering products such as Sulfamic Acid, Titanium Dioxide, Sodium Nitrite, Sodium Nitrate, Maleic Anhydride.
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![99.8% Sulfamic Acid]()
99.8% Sulfamic Acid99.8% Sulfamic Acid is a high-purity industrial-grade sulfamic acid supplied as a white crystalline solid. With a minimum assay of 99.8% and controlled chloride, iron, sulfate, moisture and... -
![Titanium Dioxide Rutile]()
Titanium Dioxide RutileTitanium Dioxide Rutile is a white inorganic pigment based on titanium dioxide. It is supplied as a white powder for industrial applications requiring high whiteness, tinting strength, controlled... -
![Industrial Grade Sulfamic Acid]()
Industrial Grade Sulfamic AcidIndustrial Grade Sulfamic Acid is a white crystalline inorganic acid with a minimum assay of 99.8%. It is supplied for applications requiring consistent sulfamic acid purity. -
![Cleaning Agent Sulfamic Acid]()
Cleaning Agent Sulfamic AcidCleaning Agent Sulfamic Acid is is supplied as a white crystalline solid, commonly used for removing mineral scale, deposits, and inorganic residues in industrial cleaning formulations. -
![Metal Treatment Sulfamic Acid]()
Metal Treatment Sulfamic AcidMetal Treatment Sulfamic Acid is a high-purity industrial sulfamic acid used for metal cleaning, descaling, and surface treatment. -
![Electroplating Sulfamic Acid]()
Electroplating Sulfamic AcidElectroplating Sulfamic Acid is a process chemical for nickel sulfamate plating and electroforming, used in bath preparation, replenishment, and pH adjustment. -
![Bleaching Assistant Sulfamic Acid]()
Bleaching Assistant Sulfamic AcidBleaching Assistant Sulfamic Acid is a white crystalline solid with an assay of 99.8% minimum. It is industrial-grade sulfamic acid supplied for bleaching-related processing, including pulp and... -
![Eco-friendly Detergent Powder]()
Eco-friendly Detergent PowderEco-friendly Detergent Powder is a powdered laundry detergent available in active substance levels of 7%–25%, with options for hand washing and machine washing. -
![Sodium Nitrate Prills]()
Sodium Nitrate PrillsSodium Nitrate Prills are an inorganic nitrate compound. Supplied as a white crystalline/prilled solid, they are used across fertilizer, glass, ceramics, metallurgical, chemical, and... -
![Industrial Grade Sodium Nitrite]()
Industrial Grade Sodium NitriteIndustrial Grade Sodium Nitrite is an inorganic nitrite salt supplied as white to light-yellow crystals. With 98.0–99.0% sodium nitrite content on a dry basis, it is suitable for industrial... -
![Titanium Dioxide Food Grade]()
Titanium Dioxide Food GradeTitanium Dioxide Food Grade is a high-purity white powder based on titanium dioxide (TiO₂). It is manufactured for applications requiring controlled chemical impurities and microbiological quality. -
![Technical Grade Maleic Anhydride]()
Technical Grade Maleic AnhydrideTechnical Grade Maleic Anhydride is a high-purity industrial chemical intermediate with a minimum purity of 99.5%. It is used in resin production, chemical synthesis, and other industrial...
Sulfamic Acid:Available in different grades for industrial cleaning and descaling, metal treatment, electroplating, chemical processing, and cleaning formulations.
Titanium Dioxide:A white pigment for paints, coatings, plastics, rubber, chemical formulations, and selected industrial materials where brightness, opacity, and whiteness are required.
Sodium Nitrite:Used in corrosion inhibition, metal treatment, chemical manufacturing, heat-transfer systems, and laboratory applications. Product grade and intended use should be confirmed before purchase.
Sodium Nitrate:A versatile inorganic chemical used in industrial processing and chemical formulations.
Maleic Anhydride:An important intermediate for resins, polymers, and other chemical products. Available in 99.5% purity technical grade.
Industrial range at a glance
|
Group |
Representative Product |
CAS |
Typical Grade / Spec |
Primary Industrial Use |
|
Descaling |
Sulfamic Acid |
5329-14-6 |
99.0–99.8% |
Boiler/condenser descaling, metal cleaning, electroplating, textile/bleaching assistant |
|
Pigment |
Titanium Dioxide (Rutile / Anatase) |
13463-67-7 |
Rutile & food-adjacent grades available |
Paints/coatings, plastics, masterbatch, paper |
|
Cleaning |
Phosphate-free Detergent |
— |
Active 6–25% by class |
I&I / laundry cleaning; eco positioning |
|
Nitrate/Nitrite |
Sodium Nitrite |
7632-00-0 |
98.0–99.0% (industrial) |
Corrosion inhibitor (coolants/antifreeze), heat-transfer fluid, synthesis |
|
Nitrate/Nitrite |
Sodium Nitrate |
7631-99-4 |
Prills, industrial |
Heat-transfer salts, glass, fertilizers, oxidation |
|
Anhydride |
Maleic Anhydride |
108-31-6 |
99.5% |
Unsat. polyester & alkyd resins, lubricants, copolymers |
Key Points for Selection
Exact Specification
Before comparing the quotations, make sure that they are for the same grade and specification.Key parameters include purity/assay, moisture, insoluble matter, particle size, pH, heavy metals, appearance, impurities, packaging, and grade/standard.
Consistent Batch Quality
Consistency is critical for industrial manufacturers. Variation between shipments can lead to process adjustments, downtime, higher QC costs, finished-product variation, and raw-material requalification. We confirm specifications before supply and provide relevant quality documentation.
Grade Selection
The same chemical may be available in different grades for different applications. Before purchasing, confirm chemical, grade, purity, application, and required standard. If unsure, send your current specification or COA for evaluation.
Industrial Applications
Our industrial chemicals support a range of manufacturing and processing applications.
Chemical Manufacturing:Raw materials and intermediates for chemical synthesis and industrial formulations.
Metal Treatment:Selected chemicals for cleaning, descaling, surface treatment, electroplating and related processes.
Cleaning & Descaling:Acidic and specialty chemicals for industrial cleaning formulations and equipment maintenance.
Paints & Coatings:Selected pigments and chemical raw materials for coatings and material formulations.
Plastics & Rubber:Raw materials used in polymer, plastic and rubber processing.
Construction & Building Materials:Selected chemical ingredients for cement, concrete and construction-related formulations.
Standard products do not always fit every industrial process.We can discuss customized requirements such as:
Grade Matching:Evaluate products against your existing technical specification.
Purity Requirements:Confirm available purity grades according to the intended application.
Particle Size:Selected products can be evaluated according to required particle-size specifications.
Packaging:Discuss bag, drum, jumbo-bag or other suitable packaging formats.
Private Label & OEM:For selected products and qualified orders, customized labeling and packaging can be discussed.
Send Your Requirement
Provide the product name, grade, quantity and destination.
Specification Confirmation
Confirm the technical specification and applicable product grade.
Sample Testing
Request a sample for laboratory or production evaluation where required.
Commercial Quotation
Confirm product, quantity, packaging, payment and shipping requirements.
Production & Quality Control
The order is prepared according to the agreed product and quality requirements.
Shipment
Packaging, documentation and transportation are coordinated for delivery.
Repeat Orders
For regular demand, forecast-based supply planning can be discussed.
Quality Documentation for Your Procurement
Depending on the product, we can provide relevant documentation such as:
Product Specification
1
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Certificate of Analysis (COA)
2
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Technical Data Sheet (TDS)
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Safety Data Sheet (SDS)
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Batch Information
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Packaging Information
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Other product-specific supporting documents
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Safe Storage And Operation
Acids (sulfamic, maleic anhydride)
Corrosive — Acid-resistant gloves, goggles, apron. Maleic anhydride reacts with water/moisture; keep dry. Neutralize spills per SDS.
Nitrite / nitrate
Oxidizers — Never store with acids (releases toxic nitrogen oxides). Keep sodium nitrate dry (deliquescent). Authorized, documented handling only.
Titanium dioxide
Dust — Use local exhaust / respirator in enclosed transfer; avoid airborne concentration above OEL.
Detergent systems
Generally low-hazard; follow SDS for surfactant blend; avoid mixing with incompatible cleaners.
Company Profile
Founded in 2006, Qingdao Longfeng Chemical Co., Ltd. specializes in exporting food additives, feed additives, industrial chemicals, agrochemicals, and water treatment chemicals. With headquarters in Qingdao and a Hong Kong office, we serve over 45 countries, including Russia, Germany, Spain, India, Brazil, and South Africa.
Packaging & Logistics
Industrial chemicals require packaging appropriate to their chemical properties, handling requirements and transportation conditions.
Packaging Options
- PP Bags
- Kraft Paper Bags
- PE Inner Bags
- Jumbo Bags
- Drums
- Other product-specific packaging
Packaging can be discussed according to product, quantity, handling requirements and destination.
Transportation Options
We support international transportation by:
- Sea Freight:Suitable for containerized and bulk international shipments.
- Rail Freight:Available for selected international routes.
- Road Transportation:Suitable for regional and cross-border deliveries.
- Multimodal Transportation:Different transportation methods can be combined according to destination and delivery requirements.
certificate
We provide all the necessary information to ensure your smooth passage through the review process.
ISO 9001
ISO 14001
TSCA status for US
REACH for Korea
With abundant experience, we are one of the most professional industrial chemicals manufacturers and suppliers in China. We warmly welcome you to buy bulk premium industrial chemicals at competitive price from our factory. If you have any enquiry about free sample, please feel free to email us.
