Name | FERRIC PYROPHOSPHATE |
Synonyms | SFP H 61 sodium SOLUBLE diferric IRON PYROPHOSPHATE pyrophosphate ferric FERRIC PYROPHOSPHATE Ferric pyrophosphate citrate tetrairon tris(pyrophosphate) SODIUMFERRICITROPYROPHOSPHATE IRON(III) DIPHOSPHATE, SOLUBLE phosphonomethylphosphonic acid SFP (soluble ferric pyrophosphate) H 61 (soluble ferric pyrophosphate) 2-oxidopropane-1,2,3-tricarboxylate sodium,iron(3+),2-oxidopropane-1,2,3-tricarboxylate,phosphonomethylphosphonic acid |
CAS | 1332-96-3 10058-44-3 |
EINECS | 233-190-0 |
InChI | InChI=1/4Fe.3H4O7P2/c;;;;3*1-8(2,3)7-9(4,5)6/h;;;;3*(H2,1,2,3)(H2,4,5,6)/q4*+2;;;/p-12 |
Molecular Formula | C6H13Fe2NaO14P2 |
Molar Mass | 505.78 |
Appearance | Yellow-green powder or crystal |
Storage Condition | Room Temprature |
MDL | MFCD00016091 |
Physical and Chemical Properties | WGK Germany:3 |
WGK Germany | 3 |
White to brownish yellow powder. Iron, in the form of a complex, does not catalyze the oxidation reaction. Insoluble in water, soluble in hydrochloric acid.
The production methods include ferric nitrate method and ferric chloride method.
Ferric nitrate method: iron nitrate is added into a reactor containing distilled water, and anhydrous sodium pyrophosphate is slowly added under stirring to react to generate Ferric Pyrophosphate, and arsenic removing agent and heavy metal removing agent are added to purify the solution, filter to remove impurities such as arsenic and heavy metals, to the filtrate quickly add the newly prepared polyacrylamide aqueous solution, after standing to pour out the supernatant, the slurry is filtered, washed with hot water, and finally washed with methanol, dried at 80-90 °c to produce a finished edible Ferric Pyrophosphate.
used as a nutritional supplement. It is a new type of iron source, in which iron exists in the form of complex, does not catalyze oxidation reaction, and the color is very white, the application is wide, can be widely used in food, salt, health care products, medicine and other fields, mainly used in flour, grains and salt and other light-colored food.
Generally Recognized As Safe (U. S. Food and Drug Administration, 1985). Sealed food with polyethylene plastic bags, each bag of net weight 5kg, every 10 bags for a box, packed in large boxes, the package should be printed with "Food Additives. Should be stored in a ventilated, dry warehouse, do not make the moisture deterioration, prevention of toxic and harmful substances pollution. It shall not be mixed with toxic and hazardous substances during transportation. Against sun and rain. During loading and unloading, care should be taken to prevent the packaging from breaking and becoming damp. When there is a fire, it can be suppressed by water and various kinds of fire retardants.
use | sodium iron pyrophosphate is used as iron salt fortification and is widely used in food, salt, health care products, medicine, etc. Nutritional supplements. Mainly used for flour and grain. |
identification test | take 500mg of sample, add 5ml of 1:1 dilute hydrochloric acid to dissolve it, add excess sodium hydroxide test solution (TS-224) to generate reddish brown precipitate. After standing for a few minutes, filter and discard several ml of initial filtrate. Take 5ml of this transparent filtrate, add 1 drop of bromophenol blue test solution (TS-53), and titrate to green with lmol/L hydrochloric acid. Add 10ml of 12.5% zinc sulfate solution and readjust Ph to 3.8 (green). White precipitates (unlike orthophosphates) should be generated. |
content analysis | is the same as the content analysis method of "iron phosphate (01209). |
toxicity | GRAS(FDA,§ 182.5306,2000). |
Production method | It is obtained by the reaction of tetrasodium pyrophosphate and soluble iron salt. |