Product Description

Appearance: Yellow to orange crystalline powder, slightly smelly, slightly bitter taste. Melting point 280℃(decomposition). Soluble in alkaline solution and sodium chloride solution, slightly soluble in water, slightly soluble in ethanol, insoluble in ether and chloroform. The aqueous solution is yellowish-green and the saturated aqueous solution is neutral. Heat resistance, acid resistance is good, in alkaline solution or ultraviolet irradiation is vulnerable to destruction, reducing agents are also unstable. Rats were intraperitoneally injected with LD50560mg/kg and ADI 0-0.5 mg/kg(FAO/WHO, 1994).

Melting point: 290 °C (dec.)(lit.)

Specific rotation: -135 o (c=5, 0.05 M NaOH)

Boiling point: 504.93°C (rough estimate)

Packing density: 100kg/m3

Density: 1.2112 (rough estimate)

Refractive index: -135 ° (C=0.5, JP Method)

Flash point: 9℃

Storage conditions: 2-8°C

Solubility: Very slightly soluble in water,  practically insoluble in ethanol (96 per cent). Solutions deteriorate on exposure to light,  especially in the presence of alkali. It shows polymorphism (5.9).

Acidity factor: (pKa)1.7(at 25℃)

Form: Powder

Color: Yellow to orange

PH: 5.5-7.2 (0.07g/l, H2O, 20°C)

Odor: (Odor) Slight odor

Acid-base indicator color change ph range: 6

Water solubility: 0.07g /L (20 oC)

Sensitivity: light sensitive

Use 1

Used to treat riboflavin deficiency, conjunctivitis, nutritional ulcers, systemic dystrophia and other diseases

Use 2

Biochemical research, photocatalyst, nutrient and clinical drug for acrylamide gel polymerization belong to vitamin B group, participate in the metabolism of sugar, fat and protein in the body, maintain normal visual function and promote growth. Clinical for the treatment of lack of vitamin B2 caused by keratitis, slossitis and other diseases.

Use 3

Vitamin B2 is a vitamin that promotes the growth and development of the body and plays an important role in the process of human metabolism. Lack, prone to conjunctivitis, keratitis, glossitis and other diseases. China stipulates that it can be used for table salt, the amount of use is 100 ~ 150mg/kg; The maximum usage in solid drinks is 10 ~ 13mg/kg; The amount used in infant food is 4 to 8mg/kg; The dosage in cereals and their products is 3.0 ~ 5.0mg/kg; The amount used in liquid and milk drinks is 1 ~ 2mg/kg. It can also be used as a yellow colorant.

Use 4

Riboflavin exists in green vegetables, soybeans, rice, wheat, yeast, liver, heart and milk, riboflavin is distributed in various tissues in the body, constituting a coenzyme in the body's complement hydrogenation system, participating in REDOX reaction, and playing the role of transferring hydrogen atoms. When riboflavin is lacking, it will affect biological oxidation, cause metabolic disorders, and cause lesions in the mouth, eyes, external genitalia, such as keratitis, cheilitis, conjunctivitis, scrotis, etc. Riboflavin is mainly used as medicine, food additives and feed additives, in the medicinal aspect, used in complex vitamins or vitamin B2 preparations, but also used as a yellow coloring agent for sugar tablets and capsules. When used as a food additive, on the one hand, it has the effect of strengthening nutrition, and on the other hand, it is also used as a yellow coloring agent. The LD50 of intraperitoneal injection was 560mg/kg.

Use 5

Yellow catalyst for acrylamide gel polymerization. Preparation of tissue medium. Biochemical research. Leptospira culture-medium was prepared in serum test of bacteria.

Package and Logistics

For powders: normal is 25kgs/Drum or bag, or larger/smaller package as request.

For liquids: normal 25kgs/drum, 180-300kgs/bucket, or IBC, determined by the nature of the product. 

                     Or smaller package 1kg/bottle, 10kgs/bottle as request. 

FAQ

Q1. Could you please provide some samples?

A1: Yes, Free samples for the quality evaluation for most products, but customers only need to undertake the shipping fee for delivery the samples to your destionation.

Q2. What about the lead time?

A2: Sample needs 3-5 days;    mass production time needs 1-2 weeks.

Q3. Do you have any MOQ limit for order?

A3: Low MOQ, 10-100g for sample checking is available.

Q4. How do you ship the goods and how long does it take to arrive?

A4: We usually ship by DHL, UPS, FedEx or TNT.     It usually takes 3-5 days to arrive.     Airline and sea shipping also optional.

Q5. How to proceed an order for your products?

A5: Firstly, let us know your requirements or application.

Secondly, we quote according to your requirements or our suggestions.

Thirdly customer confirms the samples and places deposit for normal order.

Fourthly We arrange the production.

Q6. Are you trading company or manufacturer?

A6: We are chemical factory in China.     So, we can provide wholesale price.

Q7: What are your payment terms?

A7: We can accept various payment methods, Western Union, T/T, PayPal, etc.

Company Profile

Hebei Longbang Technology Co., LTD

located in Shijiazhuang City, the capital of Hebei Province and the Beijing-Tianjin-Hebei New Zealand Hub, with convenient transportation. Our company is a modern high-tech chemical enterprise integrating R&D, production and sales.

Our company has strong technical force, advanced equipment, strict quality management system and high-quality after-sales service, adheres to the business philosophy of "customer first, keen and enterprising", and adheres to honesty as the foundation of the company's survival. All for the satisfaction of customers, all for the long-term healthy development of the enterprise. In the past 10 years, we have been strictly managing the entire trading process, focusing on every detail, providing customers with a full range of services such as product procurement, research and development, quality control, logistics management, etc., and becoming a trustworthy partner and partner for customers. Nowadays, we have formed a product chain with many variety, large scale, complete products, refinement, high added value and high technical content. There are many series of medical products, food-grade additives, industrial grade, fertilizer grade, mineral products, etc.

As a way to take advantage of the ever-expanding information resources in international trade, we welcome potential customers from anywhere online and off-line. Although we provide high-quality products, our qualified after-sales service team provides an effective and satisfying enquiry service. Item Inventory and Detail Detail Records as well as any other information will be sent to you in a timely manner to check the information.