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: Congtai District, La Defense North
MaxCard:
Ms.AnnaCAS NO.68-04-2
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.
| Molar Mass | 258.07 |
| Density | 1.008 g/mL at 20 °C |
| Melting Point | 300°C |
| Boling Point | 309.6°C at 760 mmHg |
| FEMA | 3026 | SODIUM CITRATE |
| Flash Point | 155.2°C |
| Water Solubility | Soluble in water. |
| Solubility | Soluble in water, insoluble in ethanol |
| Vapor Presure | 5.73E-05mmHg at 25°C |
| Appearance | White crystalline particles or powder |
| Color | White to off-white |
| Maximum wavelength(λmax) | λ: 260 nm Amax: ≤0.1 |
| PH | 8.59(1 mM solution);8.9(10 mM solution);9.04(100 mM solution);9.26(1000 mM solution) |
| Storage Condition | 2-8℃ |
| Sensitive | Hygroscopic |
| MDL | MFCD00012462 |
Authoritative Data Verified Data
alkalinity
take l.Og of this product, add 20ml of water to dissolve, add 1 drop of phenolphthalein indicator solution and 0.05 ml of sulfuric acid titration solution (0.10 mol/L), and do not appear red. The clarity and color of the solution take this product 2.5g, add water 10ml after dissolution, the solution should be clear and colorless.
chloride
take 0.60g of this product and check it according to law (General rule 0801). Compared with the control solution made of 6.0ml of standard sodium chloride solution, it should not be more concentrated (0.01%).
sulfate
take 0.50g of this product and check it according to law (General rule 0802). Compared with the control solution made of 0.05% of standard potassium sulfate solution, it should not be more concentrated ().
tartrate
Take lg of this product, put it in a test tube, add 2ml of water to dissolve it, add 1ml of potassium acetate test solution and acetic acid respectively, and rub the tube wall with a glass rod to prevent precipitation of crystalline precipitate.
easily carbonized
take 0.40g of this product, add 5ml of sulfuric acid (containing H2S04 94.5% ~ 95.5%), heat at 90°C ± 1°C for 1 hour, immediately cool down, and check according to law (General rule 0842), it should not be deeper than the yellow or yellow-green standard colorimetric solution No. 8.
loss on drying
take this product, dry to constant weight at 180°C, weight loss should be 10.0% ~ 13.0% (General 0831).
calcium or oxalate
take 2.0g of this product, add 20ml of New boiling cold water to dissolve, add 0.4ml of ammonia test solution and 2ml of ammonium oxalate test solution, shake, and place for 1 hour, if turbidity occurs, add 0.125g of calcium carbonate to standard calcium solution, put it in a 500ml measuring flask, add 5ml of mixed solution of water and 0.5ml of hydrochloric acid to dissolve, dilute to the mark with water, and shake well, equivalent to mg of calcium (Ca) per 1 ml] 0.005% ml of the control solution should not be more concentrated (). In the above inspection, if there is no turbidity, should take the product l. Add the mixed solution of 1 ml of water and 3ml of dilute hydrochloric acid to dissolve, add 4 drops of 90% ethanol and 4ml of calcium chloride test solution, and let stand for 1 hour without turbidity.
Iron Salt
take 1.0g of this product and check it according to law (General rule 0807). After extracting with n-butanol, compare with 0.001% of standard iron solution and the control solution made by the same method.
Heavy metals
take 2.0g of this product, Add 10ml of water to dissolve, Add 10ml of dilute acetic acid and an appropriate amount of water to make 25ml, and check according to law (General rule 0821 first law), containing no more than 5 parts per million of heavy metals.
arsenic salt
take 2.0g of this product, add 23ml of water to dissolve, add 5ml of hydrochloric acid, check according to law (General rule 0822 first law), should comply with the provisions (0.0001%).
bacterial endotoxin
take this product and check it according to law (General rule 1143). The amount of endotoxin per 1 mg of sodium citrate should be less than 0.25EU. (For injection)
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.