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Home > Products >  Natural Preservatives additives Citric Acid

Natural Preservatives additives Citric Acid CAS NO.77-92-9

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

Keywords

  • Citric Acid
  • 3'-hydroxy-3-biphenylcarboxylic acid
  • 3-hydroxy-3-carboxy-pentanedioic acid

Quick Details

  • ProName: Natural Preservatives additives Citric...
  • CasNo: 77-92-9
  • Molecular Formula: C6H8O7
  • Appearance: powder
  • Application: Preservatives and food additives
  • DeliveryTime: 4-15 workdays
  • PackAge: 25kg per bag
  • Port: Any China port
  • ProductionCapacity: 500 Metric Ton/Month
  • Purity: 97
  • Storage: keep in cool and dry
  • 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

Citric acid physicochemical properties
Density 1.8±0.1 g/cm3
Boiling point 309.6±42.0 °C at 760 mmHg
Melting point 153-159 °C (lit.)
Molecular formula C6H8O7
Molecular weight 192.124
Flash point 155.2±24.4 °C
Exact quality 192.027008
PSA 132.13000
LogP -1.72
Appearance traits White crystalline powder
Vapor pressure 0.0±1.5 mmHg at 25°C
Refractive index 1.575
Storage conditions
1. This product is sealed in a cool, dry and preserved condition. Keep away from fire, heat, and open-air stacking, strictly waterproof, moisture-proof, and sun-proof.
 
2. Packed in woven bag lined with plastic bag, or in kraft paper bag, net weight 25kg per bag. It is sealed and stored, and it should be protected from heat and moisture during storage and transportation. press
General chemicals require storage and transportation.
 
Stability
1. White translucent crystal or powder. Odorless, sour, citric acid crystallized from a cold solution contains 1 molecule of water, which is anhydrous in dry air or heated to 40-50 °C. It is slightly deliquescent in humid air. It softens at 75 ° C, melts at 100 ° C, is easily soluble in water and ethanol, and is soluble in ether. Combustible. Do not dissolve in organic solvents such as chloroform and benzene. The aqueous solution is acidic. Citric acid is a strong organic acid that has a strong corrosive effect on carbon steel but no corrosion on stainless steel. In the case of strong oxidants (such as potassium permanganate) can be oxidized to produce oxalic acid; when dissolved with potassium hydroxide, it is decomposed into oxalic acid and acetic acid.
 
2. This product is non-toxic.
 
3. Exist in flue-cured tobacco leaves and burley tobacco leaves.
 
4. It is found in many natural plants such as lemon and citrus.
 
5. It is a strong organic acid.
 
6. There are two forms: anhydrate is crystallized from hot water, and one water is crystallized from a cold aqueous solution. A water can lose water in dry air.
 
Water solubility 750 g/L (20 oC)
Molecular Structure
1, molar refractive index: 36.04
 
2, molar volume (cm3 / mol): 109.0
 
3, isotonic capacity (90.2K): 348.0
 
4. Surface tension (dyne/cm): 103.9
 
5. Polarization rate (10-24cm3): 14.28
 
Computing chemistry
1. Hydrophobic parameter calculation reference value (XlogP): none
 
2. Number of hydrogen bond donors: 4
 
3. Number of hydrogen bond acceptors: 7
 
4. Number of rotatable chemical bonds: 5
 
5. Number of tautomers: none
 
6. Topological molecular polar surface area 132
 
7. Number of heavy atoms: 13
 
8. Surface charge: 0
 
9. Complexity: 227
 
10. Number of isotope atoms: 0
 
11. Determine the number of atomic stereocenters: 0
 
12. Uncertainty of the number of atomic stereocenters: 0
 
13. Determine the number of chemical bond stereocenters: 0
 
14. Uncertain chemical bond number of stereocenters: 0
 
15. Number of covalent bond units: 1
 
More
1. Properties: white translucent crystals or powder with a pleasant sour taste.
 
2. Density (g/mL, 25/4 ° C): 1.665 (anhydrous)
 
3. Relative density (20 ° C, 4 ° C): 1.665
 
4. Melting point (oC): 153 (anhydrous)
 
5. Crystal phase phase standard heat of combustion (焓) (kJ·mol-1): -1960.6
 
6. The crystal phase standard claims heat (焓) (kJ·mol-1): -1543.8
 
7. Refractive index: 1.493～1.509
 
8. Specific optical rotation (o): uncertain
 
9. Self-ignition point or ignition temperature (oC): not determined
 
10. Vapor pressure (kPa, 25oC): not determined
 
11. Saturated vapor pressure (kPa, 60oC): not determined
 
12. Heat of combustion (KJ/mol): not determined
 
13. Critical Temperature (oC): Uncertain
 
14. Critical Pressure (KPa): Uncertain
 
15. Logarithm of the partition coefficient of oil-water (octanol/water): uncertain
 
16. Upper explosion limit (%, V/V): Uncertain
 
17. Lower explosion limit (%, V/V): Uncertain
 
18. Solubility: Soluble in water and ethanol, soluble in ether.
 
19. Flash point (oC): 100

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