L-Ascorbic acid（C),L-Ascorbic acid CAS NO.50-81-7

Min.Order: 1 Kilogram
Payment Terms: T/T,MoneyGram,Other

Product Details

Keywords

L-Ascorbic acid
Calscorbate
L-Ascorbic acid（C)

Quick Details

ProName: L-Ascorbic acid（C),L-Ascorbic acid
CasNo: 50-81-7
Molecular Formula: C6H8O6
Appearance: white powder
Application: An effective reducing agent and antiox...
DeliveryTime: 3-13days
PackAge: standard packaging
Port: TianJin Shanghai
ProductionCapacity: 600 Metric Ton/Month
Purity: more than 95
Storage: Brown glass bottle sealed packaging. S...
Transportation: by sea or air
LimitNum: 1 Kilogram

Superiority

1,Best Quality:

Our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so you can trust us.

2, Payment method: for example T/T, Westerm Union,other

3, Excellent Service: Best service and after-sales service to all clients.

1)We will ship the goods within 5days after get your payments.If you want to cancel or change order, please tell me within 24hours after you finish the payment..

2)We will ship the goods that you order from us by DHL, UPS, TNT and EUB.We will decided to choose which courier depend on different countries.To find the best way to delivery the goods for you.

3)As usual you can get the goods with in 4-7days.If the goods were lost or not received for other reasons, please contact us immediately.

4,Fast and safe delivery:

Sample Order : As usual you can get the goods within 4-7days. We can send it via HKems, HK Air Post, DHL or other methods.

We have a professional and stable logistics, and we can deliver the package smoothly around 3 to 5 days.

Bulk Order: Shipped via sea or air, it's according to your requirement, delivery time is 7-15days after payment.

If you have any other questions to consult me,please not hesitate to contact me any times.

Details

Vitamin C physical and chemical properties

Density 2.0 ± 0.1 g / cm3

Boiling point 552.7 ± 50.0 ° C at 760 mmHg

Melting point 190-194 ° C (dec.)

Molecular formula C6H8O6

Molecular weight 176.124

Flash point 238.2 ± 23.6 ° C

Exact mass 176.032089

PSA 107.22000

LogP -2.41

Appearance: white to very light yellow crystalline powder

Vapor pressure 0.0 ± 3.4 mmHg at 25 ° C

Refractive index 1.711

Storage conditions

Brown glass bottle sealed packaging. Store in a cool, dry place away from light.

Stability

1. It is relatively stable in dry air, impure and many natural products. It can be oxidized by air and light. Its aqueous solution is unstable and quickly oxidized to dehydroascorbic acid, especially in neutral or alkaline solutions. When exposed to light, heat, metal ions such as iron and copper will accelerate oxidation, can form a stable metal salt. It is a relatively strong reducing agent, and the color becomes darker after storage for a long time, and it becomes light yellow in different degrees. LC50 (mice, vein): 518mg / kg.

2. It is easy to cause deterioration in case of air and heating. It is easy to oxidize and fail in alkaline solution. Under air conditions, it rapidly deteriorates in aqueous solution and is a strong reducing agent.

3. Exists in smoke.

4. Widely distributed in animals and plants. Stable to air when dry. The aqueous solution is quickly oxidized by air.

Water solubility 333 g / L (20 ºC)

Molecular Structure

1. Molar refractive index: 35.26

2. Molar volume (cm3 / mol): 90.1

3. Isotonic specific volume (90.2K): 310.3

4. Surface tension (dyne / cm): 140.5

5. Dielectric constant (F / m):

6. Dipole distance (D):

7. Polarizability (10-24cm3): 13.97