Hebei Nengqian Chemical Import and Export Co., LTD
Assessed Supplier Enterprise Certification
- Assessed
Supplier - 4th
years
Assessed Supplier Enterprise Certification
Product Certification&
Enterprise Certification
Country: 
China (Mainland)
Business Type:Trading Company
Tel: +86 18233902561
Mobile: +86 18233902561
Tel: +86 18233902561
Fax: 4001020630
URL: https://www.nengqianchemical.com/
Province/state: Hebei
City: Handan
Street: No.1722, Block C, Yangguang Xinzhuo Plaza, 256 Renmin West Road, Fuxing District, Handan City, Hebei Province
MaxCard:
Ms.AnnaCAS NO.1314-13-2
medical grade(1-50)Metric Tonmedical grade(50-500)Metric Ton
Our Advantage
Rich Experience
Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term.
Quality service
Company cooperates with research institutes. We strictly control the process of raw materials up to finished product.
24 hour service
Quick and clear response to customers questions. Warm after sale service, we will help to solve the problems in your usage.
High quality
Dedicated to serving customers first, we provide reasonable prices, high quality products.
| Molecular Formula | ZnO |
| Molar Mass | 81.39 |
| Melting Point | 1975℃ |
| Boling Point | 2360℃ |
| Water Solubility | 1.6 mg/L (29℃) |
| Solubility | Soluble in dilute acetic acid, mineral acid, ammonia, alkali solution, almost insoluble in water |
| Appearance | White to light yellow crystalline powder |
| Storage Condition | Room Temprature |
| MDL | MFCD00011300 |
| Physical and Chemical Properties | Character white hexagonal crystal or powder. Tasteless, fine quality. melting point 1975 ℃ relative density 5.606 refractive index 2.008~2.029 soluble in acid, sodium hydroxide, ammonium chloride, insoluble in water, ethanol and ammonia. The production method is obtained by calcining zinc carbonate. obtained by decomposition of zinc hydroxide by calcination. From the crude zinc oxide smelting into zinc, and then by high temperature air oxidation. obtained by oxidation of molten zinc. production methods currently used by the zinc ingot as a raw material of the indirect method (also known as the French method), zinc ore as a raw material of the direct method (also known as the United States law) and wet three. indirect method. Reaction equation: 2ZnO O2 → 2ZnO operation method: After the zinc ingot prepared by electrolysis is heated to 600~700 ℃ and melted, it is melted and gasified at a high temperature of 1250 to 1300 ° C., and hot air is introduced for oxidation. The generated zinc oxide is cooled and cyclone separated, and the fine particles are trapped with a bag to prepare a finished zinc oxide product. direct method. Reaction equation: C O2 → CO2 CO2 C → CO ZnO CO → Zn (vapor) CO2 Zn (vapor) CO O2 → ZnO CO2 operation method: the calcined zinc ore powder (or zinc-containing material), anthracite coal (or Coke) and limestone are prepared into balls according to the ratio of 1:0.5:0.05. After reduction smelting at 1300 ℃, the zinc oxide in the ore powder is reduced to zinc vapor, which is then oxidized by air, and the generated zinc oxide is captured to obtain a finished zinc oxide product. wet method. Zinc sulfate is formed by reacting zinc ash with sulfuric acid, and then it is reacted with sodium carbonate and ammonia respectively to prepare zinc oxide from zinc carbonate and zinc hydroxide. The reaction equation is as follows: Zn H2SO4 → ZnSO4 H2 ↑ ZnSO4 Na2CO3 → ZnCO3 Na2SO4 ZnSO4 2NH3 · H2O → Zn(OH)2 (NH4)2SO4 zinc carbonate as raw material, after washing, drying, calcination, grinding products prepared by zinc oxide. ZnCO2 → ZnO CO2 zinc hydroxide was used as raw material to prepare zinc oxide by water washing, drying, calcining, cooling and grinding. The production method of Zn(OH)2 → ZnO H2O currently used is the indirect method using zinc ingot as raw material (also called French method), direct method (also known as the United States law) and wet three kinds of zinc ore as raw material. The zinc ingot was heated to 1000 ° C. By an indirect method, melted and vaporized, and hot air was introduced for oxidation. The resulting zinc oxide was cooled, cyclone-separated, and fine particles were collected in a cloth bag. Thus, a finished product of zinc oxide is obtained. 2Zn O2 → 2ZnO The direct roasting method of zinc ore powder, anthracite and lime are formulated into spheres in proportion. After reduction smelting, the zinc oxide in the ore powder is reduced to zinc vapor, and then the air is introduced for oxidation, and the generated zinc oxide is trapped to obtain a finished zinc oxide product. 2ZnO C → 2Zn CO2 2Zn O2 → 2ZnO Zinc ash used in wet process reacts with sulfuric acid to form zinc sulfate, and then reacts with sodium carbonate and ammonia respectively, the prepared zinc carbonate and zinc hydroxide were used as raw materials to prepare zinc oxide by calcination and pulverization. Zn H2SO4 → ZnSO4 H2 ↑ ZnSO4 Na2CO3 → ZnCO3 Na2SO4 zinc oxide was prepared from zinc carbonate by washing, drying, calcining and grinding. ZnCO3 [Δ] → ZnO CO2 zinc oxide was prepared from zinc hydroxide by water washing, precipitation, drying, calcination, cooling and pulverization. Zn(OH)2 [Δ] → ZnO H2O White Crystal or powder, belonging to hexagonal system. Odorless, non-toxic, no sand, fine and fine quality. Density 5.606g/cm3, refractive index 2.0041,1800 degrees sublimation. The tinting power is twice that of the basic lead carbonate, and the hiding power is half that of the two oxides and zinc sulfide. Insoluble in water and ethanol, soluble in acid, sodium hydroxide, ammonium chloride, amphoteric oxide. When heated at high temperature, it is yellow, and the white color is restored after cooling. In the humid air can absorb carbon dioxide and moisture gradually become basic zinc carbonate. It can also be reduced to metallic zinc by carbon or carbon monoxide. There is excess zinc in the zinc oxide lattice, the first ionization energy of zinc is relatively low, easy to lose electrons, and the electron mobility of zinc oxide is much larger than the hole mobility, which can be regarded as an n-type semiconductor. |
| Use | It is used as a pigment for paint and a filler for rubber. It is used in medicine to make ointments, zinc pastes, plasters, etc.Suitable for use as a zinc supplement in feed processingMainly used in rubber or cable industry as a reinforcing agent and active agent, also as a white adhesive colorant and filler, used in chloroprene rubber curing agentApplication of raw material gas for fine desulfurization in chemical fertilizer industryMainly used as white pigment, rubber vulcanization active agent, reinforcing agent, organic synthesis catalyst, desulfurization agent, used in electrostatic copying, pharmaceutical, etcApplications for ammonia synthesis, oil, natural gas, chemical feed gas desulfurizationUse as a matrix for analytical reagents, reference reagents, fluorescent agents, and photosensitive materialsApplications for electrostatic wet copying, dry transfer, laser fax communications, electronic |
Our company specializes in processing and selling chemical raw materials, chemical products, pharmaceutical intermediates, veterinary medicine intermediates, dye intermediates, pigments, cosmetics raw materials and chemical reagents,
Our company has a number of sales team, service and information feedback vertical integration of a sound marketing network, products are sold throughout the country and exported to South Asia, Europe, America, Africa and other more than 20 countries and regions.
Companies adhering to the "pursuit of quality, innovation and development" business philosophy, to serve as a foundation, for the survival by the quality, seek development by science and technology, adhere to quilty comes first,fair price,good sense of customer service and responsibility. in the future hebei Nengqian import and export trade Co.,Ltd will always hold "integrity, innovation" business philosophy, to achieve honesty management, on the way of specialization, internationalization, Keep moving!
Superiority
As a reliable partner for Chinese market, we are specialized in chemical raw materials; consolidate sourcing, marketing, sales, distribution and after-sale services, providing our partners with sourcing evaluation, technology supports, toll/contract manufacture, investment solution and suitable partnership establishment in China.
Service we can provide:
1. provide costomers with "one-stop"packaging service,from manufacture ,research,development,production,export and so on
2. Quality control, before shipment.
3. Prompt shipment with professional documents
4. Packing as your request, with photo before shipment
5.Mix and different products in ONE PCL,increase the working efficiency for customers.
6.We can export from many China main ports,convenient for the customes provide logistics services.
Our advantages:
1, High quality with competitive price:
1) Standard:BP/USP/EP/Enterprise standard
2) All Purity≥99%
3) We are manufacturer and can provide high quality products with factory price.
2, Fast and safe delivery
1) Parcel can be sent out in 24 hours after payment.Tracking number available
2) Secure and discreet shipment.Various transportation methods for your choice.
3) Customs pass rate ≥99%
4) We have our own agent/remailer/distributor who can help us ship our products very fast and safe,
and we have stock in there for transferring.
Product Packaging：
1) 1kg/bag (1kg net weight, 1.1kg gross weight, packed in an aluminum foil bag)
2) 25kg/drum (25kg net weight, 28kg gross weight; Packed in a cardboard-drum with two plastic-bags inside; Drum Size: 510mm high, 360mm diameter)
Storage：
Stored in a cool and dry well-closed container. Keep away from moisture and strong light/heat.
Delivery：
Usually within3-5 working days after full payment.
transport：
EMS,DHL, TNT, UPS ,FEDEX, BY AIR, BY SEA
DHL Express, FedEx and EMS for quantity less than 50KG, usually called as DDU service;
Sea shipping for quantity over 500KG; And air shipping is available for 50KG above;
For high value products, please select air shipping and DHL express for safe;
Our Service:
1. Fast Delivery: We can delivery within 24 hours upon receipt of your payment.
2. Quality can be promised. Hot sell to Worldwide.
3. Payment Terms: T/T,, t/t
4. Free Sample available at any time.
5. Tracking your order at any time. Inform your order's further new situation at any time.
6. Package: Professional packing with professional materials.
FAQ:
1.Are you a trade company or factory
We are a factory with our own trading company.
2.How do you control the quality
Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.
3.How long is lead time
We deliver goods within 3 days for small order, 7-10 days for bulk order.
4. Where is your factory located How can I visit the factory
Our factory located in HEBEI, China.
5.Can i get some samples
Yes, we can supply free sample, but the shipping cost be paid by our customers.
6.How to start orders or make payments
Proforma invoice will be sent first after confirmation of order, enclosed our bank information.Payment by T/T,
7. How to confirm the Product Quality before placing orders
You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples.
8. How long is lead time
We deliver goods within 3 days for small order, 7-10 days for bulk order.
9.How do you treat quality complaint
First of all, our quality control will reduce the quality problem to near zero. If there is a realquality problem caused by us, we will send you free goods for replacement or refund your loss.