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.26264-06-2
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.
| Molecular Formula | C36H58CaO6S2 |
| Molar Mass | 691.05 |
| Density | 1.04[at 20℃] |
| Boling Point | 843.05℃[at 101 325 Pa] |
| Water Solubility | 852.7μg/L at 25℃ |
| Vapor Presure | 0Pa at 25℃ |
| pKa | 0.7[at 20 ℃] |
| Physical and Chemical Properties | Trait solid. solubility slightly soluble in water. |
| Use | Used in dye, paint, textile, printing and dyeing and other industries |
| application | mainly used for preparing mixed pesticide emulsifier mainly used for pesticide emulsifier, also used for textile oil, tile cleaning agent, grinding oil agent, cement dispersant, etc. this product is used as a detergent dispersant in diesel oil, engine oil, pressurized diesel oil and engine oil. This product is the main component of mixed emulsifier for compounding organochlorine, organophosphorus, herbicide and other pesticide emulsions. It can be used as an anionic surfactant and also as a pesticide emulsifier. Mixed with nonionic surfactants to prepare mixed pesticide emulsifiers, which are widely used to prepare organophosphorus and organochlorine pesticide emulsifiers. This product is toxic and irritating to the skin. used in dye, paint, textile, printing and dyeing industries |
| production method | the molecular sieve dewaxing oil reacts with chlorine to form chloroalkane, which is then condensed with benzene to form dodecyl benzene. alkylbenzene is sulfonated with fuming sulfuric acid to obtain dodecyl benzene sulfonic acid and then neutralized with lime to obtain this product. Kg/ton molecular sieve dewaxing oil 560 pure benzene (95%) 350 fuming sulfuric acid (SO 320%) 550 lime 200 the preparation process of this product includes benzene alkylation, alkylation product sulfonation and neutralization. 432kg of this was put into a reaction kettle, and 1.06kg of aluminum trichloride and 168kg of dodecene were added under stirring. Dodecene is added by dropping method. After dropping, the temperature is increased to 60~70 ℃, and the temperature is kept for 1.6h for shrinkage reaction. After the reaction, the mud feet are removed and neutralized. Then debenzene. After benzene is removed, the distillation is reduced to 9.8kPa, and the fraction with refractive index of 1.478~1.495 is cut into refined alkylbenzene. Put the benzene into the sulfonation kettle, and add fuming sulfuric acid dropwise at about 20 ℃. After addition, the reaction was carried out at 25~30 ℃ for 1h. After sulfonation, add water and add fuming sulfuric acid dropwise at about 50 ℃. After addition, the reaction was carried out at 25~30 ℃ for 1h. After sulfonation, add water and stand at about 50 ℃ for 6 hours to separate waste acid. Finally, it is neutralized with lime water ethanol solution until the pH value is 7~8. The neutralization liquid uses a plate and frame filter to remove the waste residue, the filtrate is concentrated, and the ethanol is distilled, and the high boiling point is the product. The heavy alkylbenzene, a by-product of the alkylbenzene plant, is neutralized by sulfonation. The double membrane sulfonation method is as follows. First, the metered SO3 gas and dry air are mixed in the mixer until the SO2 concentration is 4% (volume), and then the mixed gas is introduced into the head annular space of the double membrane reactor, and the introduction speed is controlled at 20-90m/s. In addition, the heavy alkylbenzene is preheated to 30~35 ℃ and fed into the reactor head distributor with a pump. The molar ratio of heavy alkylbenzene to sulfur trioxide is 1: 1.05. The flow rate of the sulfur trioxide-air mixture in the reaction zone is about 26 m/s. The reaction temperature is 40~45 ℃. The resulting alkylbenzene sulfonic acid is driven into the aging device with an acid-resistant pump. After reacting in the aging device for 15min, drive into the water dispenser. Add water equivalent to 0.5% to 1% of sulfonic acid. To decompose the by-product sulfonic anhydride and terminate the aging process. The hydrolyzed reaction solution is a benzenesulfonic acid, which is pumped into a storage tank for later use. Add a certain amount of lime water to the neutralization pot. Under stirring, alkylbenzene sulfonic acid was added dropwise at about 30 ℃ to a pH value of 7~8. After dripping, stir for 1h and discharge. Concentrate, crystallize, filter and dry to obtain the finished product. |
| category | toxic substances |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 4000 mg/kg; Oral-mouse LD50: 3680 mg/kg |
| flammability hazard characteristics | thermal decomposition discharges toxic sulfur oxide smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | water, dry powder, carbon dioxide, foam |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
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.