| ≥1 piece |
Ferric ammonium citrate
Chemical name : 2,3-Propanetricarboxylicacid,2-Hydroxy-Ammoniumiron(3+)Salt; Ammoniumironcitrate; Citricacid,Ammoniumiron(3+)Salt; Ferricammoniumcitrae; Ferric Ammonium Citrate, Green; I Iron(+3)Ammonium Citrate, Green; Iron Ammonium Citrate; Iron Ammonium Citrate, Brown; Iron Ammonium Citrate, Green; Iron (Iii) Ammonium Citrate
CAS NO.: 1185-57-5
EINECS NO: 214-686-6
Molecular formula: C7H13FeNO7
Molecular weight:279.0256
SPEC:
Appearance: crystalline white solid
Standard: BP93 / BP98 / USP24
Grade: Food Grade,Pharmaceutical Grade ,Industry Grade.
Density: 1.665 g/cm3(1.5g/cm3 for monohydrate)
Boiling point:175 °C, 448 K, 347 °F (decomposes)
Molar mass: 192.124 g/mol (anhydrous)
210.14 g/mol (monohydrate)
Melting point: 153 °C, 426 K, 307 °F
Solubility in water: 73 g/100 ml (20 °C)
Acidity (pKa): pKa1 = 3.09
pKa2 = 4.75
pKa3 = 5.41[1]
pKa3 = 6.39,[2] 6.40[3]
Applications:
Used as experimental reagents, chromatographic analysis reagent and biochemical reagents, also used in the preparation of the buffer. Used in food industry especially as acidification agent, PH slow granule, and other compounds as preservation agent together. In the detergent industry, it is the ideal substitute for phosphate. The chemical cleaning acid lotion, the chemical cleaning drift lotion. Mainly for food sour agent, also used for preparation medicine refrigerant, detergent used.
Foods
Citric acid can be added to Ice cream as an emulsifying agent to keep fats from separating, to caramel to prevent sucrose crystallization, or to recipes in place of Fresh Lemon juice. Citric acid is used with sodium bicarbonate in a wide range of effervescent formulae, both for ingestion and for personal care . Citric acid is also often used in cleaning products and sodas or fizzy drinks.
Citric acid sold in a dry powdered form is commonly sold in markets and groceries as "sour salt", due to its physical resemblance to table salt. It has use in culinary applications where an acid is needed for either its chemical properties or for its sour flavor, but a dry ingredient is needed and additional flavors are unwanted .
Cleaning and chelating agent
Citric acid is an excellent chelating agent, binding metals. It is used to remove scale from boilers and evaporators.It can be used to soften water, which makes it useful in soaps and laundry detergents. By chelating the metals in hard water, it lets these cleaners produce foam and work better without need for water softening. Citric acid is the active ingredient in some bathroom and kitchen cleaning solutions. A solution with a 6% concentration of citric acid will remove hard water stains from glass without scrubbing. In industry, it is used to dissolve rust from steel. Citric acid can be used in shampoo to wash out wax and coloring from the hair.
Illustrative of its chelating abilities, citric acid was the first successful eluant used for total ion-exchange separation of the lanthanides, during the Manhattan Project in the 1940s. In the 1950s, it was replaced by the far more efficient EDTA. It can be used to slow setting of Portland cement. It can delay setting time substantially.
Cosmetics and pharmaceuticals
Citric acid is widely used as a pH adjusting agent in creams and gels of all kinds. In this role it is classified in most jurisdictions as a processing aid and so does not need to be listed on ingredient lists. Citric acid is an alpha hydroxy acid and used as an active ingredient in chemical peels.
Citric acid is used as one of the active ingredients in the production of antiviral tissues.
Dyeing
Citric acid can be used in food coloring to balance the pH level of a normally basic dye. It is used as an odorless alternative to white vinekgar for home dyeing with acid dyes.
Photography
Citric acid can be used as a lower-odor stop bath as part of the process for developing photographic film. Photographic developers are alkaline, so a mild acid is used to neutralize and stop their action quickly, but commonly used acetic acid leaves a strong vinegar odor in the darkroom.
Storege:
Stored in a clean, dry, sealed containers.
Grade: Food Grade,Industry Grade,Pharmaceutical Grade .