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 18732968538
Mobile: +86 18732968538
Tel: +86 18732968538
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.623-26-7
Pharmaceutical grade(1-50)KilogramPharmaceutical grade(51-99)Kilogram
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.
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.
| Molar Mass | 128.13 |
| Density | 1.3g/cm3(25℃) |
| Melting Point | 221-225 °C (lit.) |
| Boling Point | 227.54°C (rough estimate) |
| Flash Point | 142.8°C |
| Water Solubility | 0.08 g/L (23 ºC) |
| Solubility | Chloroform (Slightly), DMSO (Slightly) |
| Vapor Presure | 0.00217mmHg at 25°C |
| Vapor Density | 4.42 |
| Appearance | White crystal |
| Color | White to light yellow |
| Exposure Limit | NIOSH: IDLH 25 mg/m3 |
| BRN | 1072210 |
| Storage Condition | Sealed in dry,Room Temperature |
| Stability | Stable. Incompatible with strong acids, strong bases, strong oxidizing agents, strong reducing agents. |
| Refractive Index | 1.6231 (estimate) |
| MDL | MFCD00001810 |
| Physical and Chemical Properties |
properties white needle-like crystals or powders. |
| Use | For Organic synthesis |
| Application | terephthalonitrile is a phthalonitrile compound. Phthalonitrile is an important chemical product, mainly containing isophthalonitrile, phthalonitrile or terephthalonitrile; As an excellent reaction intermediate in organic chemistry, aromatic nitrile compounds have been widely used in biology, medicine, pesticide, functional materials and other fields. terephthalonitrile is also an important chemical organic raw material, P-xylylenediamine can be obtained by hydrogenation of terephthalonitrile, which is an important raw material of polyamide and also a good epoxy resin curing agent; terephthalic acid can be obtained by hydrolysis of terephthalonitrile, which can be used to produce polyester resin, polyester fiber, film, insulating paint, engineering plastics and plasticizers, etc, can be used for the synthesis of herbicides, pesticides and drugs. |
| preparation | S11: Add 1, 4-dibromobenzene (1.17g,5.0mmol), copper cyanide (4.50g,50.0mmol) and 50ml of dry N,N-dimethylformamide. S22: the mixture under argon was reacted at 180 °c for 48 hours. after cooling to room temperature, the solvent of N,N-dimethylformamide was removed by vacuum distillation, the resulting solid was dissolved in DCM and washed with brine, then the mixture was extracted three times with DCM. The organic phase was collected and dried over mgso4. After removal of the solvent, the crude product was purified by column chromatography and recrystallized several times from DCM/hexane to give the product. 1H NMR (7.88 MHz,CDCl3,ppm):δ = 7.84-7.82 (m,2H), 7.78-(m,2H). |
| Use | for organic synthesis for the production of pharmaceuticals. An important organic intermediate, widely used in medicine, fuel |
| production method | at present, the production of terephthalonitrile has two process routes: p-xylene as raw material and dipentene as raw material. At present, China uses the production process of p-xylene as raw material. The reaction was carried out in a fluidized bed, and the catalyst was B2O5-Cr2O3-MoO3-P2O5-SiO2, and the coarse pore micro-shaped silica gel was used as the carrier. The ammonia oxidation was carried out at 375-390 ° C. For a contact time of about 2H, the weight ratio of p-xylene to ammonia was 1:6-8, and the average yield was about 95%. |
| category | toxic substances |
| toxicity grade | poisoning |
| Acute toxicity | intraperitoneal-rat LD50: 4004 mg/kg; Intraperitoneal-mouse LD50: 699 mg/kg |
| stimulation data | eyes-rabbits 500 mg/24 h mild |
| flammability hazard characteristics | flammability; Toxic NOx and cyanide fumes from combustion |
| storage and transportation characteristics | ventilation and low temperature drying |
| fire extinguishing agent | dry powder, foam, sand, carbon dioxide, water mist |
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.
Packing:
1. Inner double plastic bags----25kg/Fiber drum (35*35*45cm, GW: 28kg, NW: 25kg);
2. Inner double plastic bags----5kg/Aluminum foil bag (GW: 6.5kg, NW: 5kg).
3. Inner double plastic bags----1kg/Aluminum foil bag (GW: 1.5kg, NW: 1kg).
P.S.: we accept packaging customization.
Delivery:
1. Stock products are normally shipping within 3 working days.
2. For rush delivery, please contact our sales team for particular arrangement.
Shipping Details:
1. We ship goods via DHL, Fedex, UPS, TNT, China post, NL Post and other couriers, weight from 10g to 1000kg or even bulker.
2. Shipping details & shipping documents will be provided and sent by email.
3. We keep tracking the shippment until clients well received.
4. After years export shipping experience, with professional and experienced cooperated forwarders, we ensure that goods can be delivered in multiple ways safetly and efficiently.
About us
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,
We have compalete sales and service team , 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!
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.
You can send us your product specifications and requests,we will manufacture the products according to your requests.
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.