quality Persulfates & Chloride factory

Here is an overview of sodium persulfate (Na₂S₂O₈) applications in the electronics industry, compiled with referenced sources: ⚙️ ‌Key Applications‌ ‌Printed Circuit Board (PCB) Manufacturing‌ ‌Etching Agent‌: Removes excess copper from substrates with precision, achieving fine-line circuitry patterns. Typical concentrations: 5–15% solutions at 40–60°C. ‌Desmear Treatment‌: Cleans drilled holes in multilayer PCBs by oxidizing epoxy residues. ‌Semiconductor Processing‌ ‌Wafer Cleaning‌: Ultra-high-purity (UHP) grades (>99.99%) remove organic contaminants and photoresist residues without damaging silicon surfaces. ‌Copper CMP (Chemical Mechanical Planarization)‌: Oxidizes copper layers during polishing for planarized wafer surfaces. ‌Metal Surface Preparation‌ ‌Pre-plating Activation‌: Micro-etching copper/brass surfaces to enhance adhesion of electroless nickel/gold coatings. ‌Lead Frame Cleaning‌: Deoxidizes metal leads before encapsulation in IC packaging. ⚠️ ‌Critical Operational Parameters‌ ‌Parameter‌ ‌Requirement‌ ‌Purpose‌ ‌Purity‌ ≥99.99% (semiconductor grade)613 Prevents ionic contamination ‌Concentration‌ 5–20% (process-dependent)512 Controls oxidation rate ‌Temperature‌ 30–70°C (optimized per application)6 Accelerates reaction kinetics ‌Filtration‌ 0.1-μm particle removal13 Eliminates defect-causing impurities ☢️ ‌Safety & Handling Notes‌ ‌Decomposition Risk‌: Degrades rapidly >65°C, releasing oxygen and sulfuric acid fumes; requires temperature-controlled baths. ‌Material Compatibility‌: Use PTFE/PVC tanks; avoid contact with aluminum or zinc (catalyzes violent decomposition). ‌Waste Treatment‌: Residual solutions must be neutralized with reducing agents (e.g., sodium bisulfite) before disposal.

‌1. Basic Properties‌ ‌Chemical Formula‌: Na₂S (Anhydrous) / Na₂S·9H₂O (Hydrate) ‌Appearance‌: Colorless crystalline powder (pure), or pink/yellow/brown solids (industrial grade due to impurities) ‌Solubility‌: Highly soluble in water, insoluble in ether; aqueous solution is strongly alkaline (pH≈12) ‌Hazards‌: Releases toxic ‌hydrogen sulfide (H₂S)‌ gas when exposed to acid/moist air (rotten egg odor) ‌Corrosive‌: Causes severe skin/eye burns; dust irritates respiratory tract ‌Flammable‌: Anhydrous form ignites spontaneously in air; dust-air mixtures are explosive ‌2. Handling & Operations‌ ‌Personal Protective Equipment (PPE)‌: ‌Must wear‌: Chemical goggles, acid/alkali-resistant gloves, protective clothing, and dust respirator ‌Operational Rules‌: ‌Ventilation‌: Use explosion-proof ventilation systems in enclosed areas ‌Avoid Contact‌: Prohibit eating/drinking during use. Prevent dust generation ‌Solution Preparation‌: Dissolve in water (e.g., 5% concentration) with gentle stirring. ‌Critical‌: Never use acid or aerated mixing (triggers H₂S release) ‌3. Storage & Transportation‌ ‌Storage Conditions‌: Cool, dry, ventilated area; temperature

Guidelines for Safe Storage and Use of Ammonium Persulfate1, Storage standardsContainer selectionEnsure that the packaging is fully sealed to prevent moisture and leakage.Environmental controlStore in a cool, dry, and ventilated specialized chemical warehouse, with temperature controlled between 5-30 ℃ and humidity ≤ 80%, away from direct sunlight and heat sources.High temperature environments (such as>30 ℃) may cause spontaneous combustion or decomposition reactions, and temperature and humidity monitoring should be strengthened.Isolation storage Store separately from reducing agents, alkalis, organic compounds, and flammable materials, maintaining a safe distance to prevent cross reactions.Set up prominent signs in the storage area to prohibit unrelated personnel from entering.2, Precautions for useDissolving operation The solution needs to be prepared and used immediately, as it is prone to hydrolysis at room temperature to produce ammonium bisulfate and hydrogen peroxide. Prolonged storage can lead to failure.Protective measures Wear chemical resistant gloves, goggles, and lab coats during operation to avoid direct skin contact or inhalation of dust.The place of use is equipped with eye wash stations and emergency shower equipment.Urgent handling Skin contact: Immediately remove contaminated clothing and rinse with plenty of water for at least 15 minutes.Inhalation/ingestion: Move to a place with fresh air, maintain unobstructed breathing, and perform artificial respiration if necessary; Drink milk or egg white to protect the mucous membrane after ingestion.3, Transportation safety managementTransportation requirements Special leak proof transportation vehicles must be equipped with fire arresters and firefighting equipment.Avoid transportation during high temperature periods (it is recommended to work in the morning and evening) to prevent bumps and static electricity accumulation.Packaging label The outer packaging is clearly labeled with warning signs of "oxidizer" and "corrosiveness", and accompanied by a Safety Data Sheet (MSDS).4, Emergency response to leakageSmall scale leakage: After wearing protective equipment, cover with inert adsorbent material (such as sand) and collect in a dedicated container for centralized treatment.Large scale leakage: Immediately evacuate personnel, seal off the scene, and contact professional environmental protection agencies for handling.Key Risk WarningOxidative risk: Contact with organic matter may cause combustion or explosion, avoid coexistence with sawdust, oil, etc.Corrosive risk: Long term exposure may lead to corrosion of metal equipment. Regularly check the integrity of storage facilities.

1. Oil reservoir fracturing enhances efficiencyAs an acidizing fluid additive, it generates acidic substances (such as sulfuric acid) through oxidation, dissolves carbonate minerals in rocks, expands the permeability channels of oil and gas reservoirs, and improves oil and gas recovery.In underground fracturing operations, an efficient fracturing fluid system is formed by compounding with other chemicals to reduce formation pressure and accelerate fracture propagation.2. Corrosion and cleaning effectsUsed as a surface treatment agent for metal pipelines or equipment, it reacts with metals to form an oxide layer, enhancing corrosion resistance.In equipment maintenance, oil stains, sediments, and organic residues can be removed to ensure the efficiency of equipment operation.3. Oxidation and Reaction PromotionAs a strong oxidant, it participates in the oxidation reaction of sulfides in petrochemical processes, reducing the emission of harmful substances.In the treatment of oily wastewater, the concentration of pollutants is reduced and water quality is improved by decomposing organic matter.4. Auxiliary process optimizationUsed in conjunction with corrosion inhibitors and surfactants to optimize the performance of acid fracturing fluids and reduce formation damage.In the desulfurization process of crude oil, auxiliary removal of sulfide impurities is carried out to improve the quality of crude oil.Typical application scenarios✅  Oil well production increase: Rapid infiltration of rock layers through fracturing fluid system to release oil and gas resources✅  Equipment maintenance: Extend the service life of industrial equipment and reduce operation and maintenance costs✅  Environmental Protection Treatment: Reducing Oil containing Wastewater Pollution and Supporting Green Production

‌Synthetic Polymer Materials‌Phenol serves as a core raw material for phenolic resins and polycarbonates (used in optical materials and electronic devices), as well as a key intermediate in producing bisphenol A (for plastic bottles and building materials) ‌Chemical and Pharmaceutical Production‌Utilized in synthesizing salicylic acid (for pharmaceuticals/pesticides), ibuprofen (analgesic), paracetamol, and other drugs; also employed in manufacturing dyes, fragrances, and rubber additives ‌Preservation and Disinfection‌Acts as a preservative in food and cosmetics to inhibit microbial growth, and functions as a bactericide in industrial circulating water systems ⚠️ ‌Environmental Pollution and Emergency Cases‌ ‌Accidental Leak Incidents‌‌Guangdong Jieyang Accident (2020)‌: A 30-ton phenol tanker leakage contaminated an 8-km river section, threatening the Rongjiang water source. Emergency teams controlled pollution using lime dams, activated carbon adsorption, and water diversion, averting a drinking water crisis.‌Yunnan Crude Phenol Pollution (2019)‌: Crude phenol leakage caused fish deaths and soil poisoning. Authorities constructed 10 lime dams for interception, deployed activated carbon for degradation, and cut off downstream water intake to ensure public safety. ‌Toxicity Impact and Mitigation‌Phenol exhibits high toxicity to aquatic life (inhibiting reproduction) and crops (causing withering); prolonged human exposure may lead to liver/kidney damage and neurological symptoms, necessitating strict industrial emission controls.

Construction of Sichuan Hongjian Chemical B2B Platform   Cooperate with China's Baidu AiGou to build a B2B ordering platform, integrating e-commerce centralized procurement, intelligent order collaboration, supply chain finance and other functions, achieving a transaction efficiency improvement of over 80%, and integrating 200+downstream customers and 50+upstream suppliers within six months. The platform optimizes supply chain management through the integration of "four flows" (information flow, business flow, logistics, and capital flow), supports diversified modes such as spot procurement and demand sourcing, reduces procurement costs, and shortens delivery cycles. We are committed to always staying at the forefront of the chemical industry and providing satisfactory raw material supply to users around the world    

Foreign trade negotiation case: Sichuan Hongjian Chemical and Kyrgyzstan customer cooperation negotiation1, Background and Requirements AnalysisCustomer background:A certain oil unit in Kyrgyzstan. Previously, it mainly relied on Russian imports, and the supply chain was blocked due to the Russia-Ukraine conflict, so it is urgent to open up Chinese sources of goods. Chinese enterprises:Sichuan Hongjian Xinyi Technology Co., Ltd. has an annual production capacity of 500000 tons of ammonium persulfate and is qualified for export. It is the first to explore the Central Asian market. Core negotiation topics: Price and Payment Method: The customer expects to purchase at a price lower than the Russian market;Transportation and delivery time: Inland countries have complex logistics, requiring clear transportation routes, cost allocation, and delivery time;Quality dispute clause: Customers may claim compensation for clumping issues within 30 days of receiving the goods;2, Negotiation Process and StrategyPhase 1: Technical Communication and Trust BuildingChinese actions:Provide third-party testing reports (with ammonium persulfate content greater than 98.5%), invite customers to video visit the production line, and demonstrate the anti caking coating process;Emphasize the advantages of China Kyrgyzstan road transportation.Customer feedback:Recognizing the stability of quality, but pointing out that high temperatures in Central Asia during summer may lead to the risk of clumping during transportation, it is requested that the cost of moisture-proof packaging be increased and borne by the Chinese side.Phase 2: Price and Term GameCustomer price reduction strategy:Comparing historical quotes from Russia, claiming that 'Chinese products need lower prices to compensate for supply chain risks';Propose a 60 day deferred letter of credit payment to alleviate cash flow pressure.Chinese response plan:Payment terms concession:Accept forward letter of credit, but require a 15% advance payment to reduce risk;Risk sharing clause:If clumping occurs due to improper temperature control during transportation, the Chinese side will bear 50% of the loss, but requires the customer to provide a third-party inspection report during unloading.Phase Three: Facilitating CooperationCultural adaptation:Presenting customers with a white paper on logistics cooperation at Xinjiang ports (in three languages of China, Russia, and Kyrgyzstan), highlighting the willingness to deeply cultivate the Central Asian market.3, Negotiation resultsContract terms:Upgrade the packaging to double-layer moisture-proof film, with each party bearing 50% of the cost;The claim period has been shortened to within 15 days of the arrival of the goods, and an international notary report is required.Long term cooperation:If the first order loss rate is less than 3%, exclusive supply agreement negotiations will be automatically initiated;The Chinese side promises to dispatch a technical team to guide local warehouse moisture-proof management.