| Customization: | Available |
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| CAS No.: | 77-92-9, 77-92-9 |
| Formula: | C6h8o7, C6h8o7 |
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Item
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Standard
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Limits
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Appearance
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Colorless or white crystals or powder, odorless and tastes sour.
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Colorless crysts
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Assay (%)
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99.5-100.5
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Corresponds
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Light Transmittance (%)
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≥ 95.0
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Corresponds
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Moisture (%)
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7.5-9.0
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0.2 % max
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Readily Carbonisablle Substance
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≤ 1.0
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Passes test
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Sulphated Ash (%)
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≤ 0.05
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Max 1.0 ppm.
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Chloride (%)
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≤ 0.005
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Max 0.1 ppm.
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Sulphate (%)
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≤ 0.015
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Max 0.5 ppm.
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Oxalate (%)
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≤ 0.01
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Max 1.0 ppm.
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Calcium (%)
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≤ 0.02
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Max 1.0 ppm.
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Iron (mg/kg)
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≤ 5
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Max 1.0 ppm.
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Arsenic (mg/kg)
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≤ 1
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Max 1.0 ppm.
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Lead
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≤ 0.5
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Max 10.0 ppm.
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Water Insoluble Substances
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Filtration time not more than 1 min; Filter membrane basically doesn't change color;Visual mottled particles not more than |
Max 1.0 ppm.
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Product Description:
Citric Acid Anhydrous
1.Appearance: White Crystalline Powder
2.Package: 25 KG/BAG
3. Shelf life: 36 months
4.Storage:Kept in dry, cool, and shaded place with original packaging, avoid moisture, store at room temperature.
5.Packaging: 25kg/bag or according to client request
6.Delivery Detail: 2 weeks after confirm order.Some of the products can be supplied within 7 days on the strength of EDC warehouse
Packaging&Shipping
The Citric acid, also known as 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, is the organic compound with the formula C6H8O7. Citric acid is a weak organic acid which is a white crystalline powder. Its EINECS registry number is 201-069-1. With the CAS registry number 77-92-9, its IUPAC name is 2-hydroxypropane-1,2,3-tricarboxylic acid.It is stable but incompatible with bases, strong oxidizing agents, reducing agents, metal nitrates. Reactions with metal nitrates are potentially explosive. Heating to the point of decomposition causes emission of acrid smoke and fumes. Citric acid can exist either in an anhydrous (water-free) form or as a monohydrate. Citric acid is soluble in water.
Physical properties of Citric acid:
(1)ACD/BCF (pH 5.5): 1; (2)ACD/BCF (pH 7.4): 1; (3)ACD/KOC (pH 5.5): 1; (4)ACD/KOC (pH 7.4): 1; (5)#H bond acceptors: 7; (6)#H bond donors: 4; (7)#Freely Rotating Bonds: 6; (8)Index of Refraction: 1.575; (9)Molar Refractivity: 36.04 cm3; (10)Molar Volume: 109.007 cm3; (11)Surface Tension: 103.956 dyne/cm; (12)Density: 1.762 g/cm3; (13)Flash Point: 155.243 °C; (14)Enthalpy of Vaporization: 63.816 kJ/mol; (15)Boiling Point: 309.567 °C at 760 mmHg; (16)Vapour Pressure: 0 mmHg at 25 °C.
Preparation of Citric acid:
Except for small amounts produced from citrus-fruit wastes, Citric acid is manufactured by aerobic fermentation of crude sugar or com sugar by a special strain of Aspergillus niger. The submerged process for the manufacture of it involves coordinated sequences of biochemical conversions with the aid of A. niger and various unit operations and chemical conversions.
C12H22O11 + H2O + 3O2 → 2C6H8O7 + 4H2O
sucrose citric acid
2C6H12O6 + 3O2 → C6H8O7 + 4H2O
dextrose citric acid
Uses of Citric acid:
Citric acid is a natural preservative/conservative and is also used to add an acidic, or sour, taste to foods and soft drinks. It is used mainly as an acidifier, as a flavoring, and as a chelating agent. Citric acid can also be used in food coloring to balance the pH level of a normally basic dye. As a food additive, Citric acid is used as a flavoring and preservative in food and beverages, especially soft drinks. Citric acid may be used as the main ripening agent in the first steps of making mozzarella cheese. Citric acid is used as a successful alternative to nitric acid in passivation of stainless steel. Citric acid can be used as a lower-odor stop bath as part of the process for developing photographic film.Citric acid is also used to remove fatty acids in blood vessels and to lower blood pressure. Meanwhile, it can also be used for cleaning, for example, Citric acid's ability to chelate metals makes it useful in soaps and laundry detergents and Citric acid can be used in shampoo to wash out wax and coloring from the hair.
Safety information of Citric acid:
When you are using this chemical, please be cautious about it as the following:This chemical may cause inflammation to the skin or other mucous membranes. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection.
You can still convert the following datas into molecular structure:
(1)InChI: InChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
(2)InChIKey: KRKNYBCHXYNGOX-UHFFFAOYSA-N
(3)Canonical SMILES: C(C(=O)O)C(CC(=O)O)(C(=O)O)O
Service we provide:
1.before shipment, free sample for test
2. Packing as your request, with photo before shipment
3. Cargoes photo before and after loading into container
4. Fast shipment by reputed shipping line
5. Best service after shipment with emails
6. Arrange the orders and shipping with us requests in time, According to the different countries export policy provide complete customs clearance documents.
7. Provide -price trend, ensure the clients can know about marketing information in time.
8.Halal, Kosher, ISO 9001 certified
9.High quality products, complying with BP/USP/FCC/EU standard
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