反応 #1755465

反応方程式

calcium carbonate

phytic acid

→

phytate

収率 137.9%

反応条件

後処理

1. 1
   温度The mixture was heated
2. 2
   その他The two solids were separated
3. 3
   ろ過filtered
4. 4
   その他was collected
5. 5
   workup.DISSOLUTIONAbout 1 kg of the calcium phytate was dissolved into 2.0 liters of water
6. 6
   温度heated to about 89° C. for about 10-15 minutes until calcium phytate
7. 7
   workup.DISSOLUTIONwas completely dissolved in the water solution
8. 8
   workup.ADDITIONAbout 0.9 kg of citric acid was then added to and
9. 9
   workup.DISSOLUTIONwas completely dissolved
10. 10
    その他The heat source was removed
11. 11
    workup.WAITthe resulting mixture was left
12. 12
    その他sat at no more than 40° C. or in a refrigerated environment at a temperature of about 5-10° C.
13. 13
    その他to crystallize for approximately 6 to 8 hours or until crystallization
14. 14
    その他to dry out at room temperature until no liquid

実験手順

First, 0.33 kg of calcium carbonate was slowly added, in increments of 0.1 kg, to 0.87 kg of phytic acid liquid. The mixture was heated and refluxed for about one hour at about 90° C. The two solids were separated and filtered. The white solid, which was calcium phytate, was collected. About 1 kg of the calcium phytate was dissolved into 2.0 liters of water and heated to about 89° C. for about 10-15 minutes until calcium phytate was completely dissolved in the water solution. About 0.9 kg of citric acid was then added to and stirred in the calcium phytate solution until the citric acid was completely dissolved. The heat source was removed and the resulting mixture was left sat at no more than 40° C. or in a refrigerated environment at a temperature of about 5-10° C. to allow the newly formed phytic hexa-citrate to crystallize for approximately 6 to 8 hours or until crystallization has ceased. The mixture was allowed to dry out at room temperature until no liquid was visible. The crystals were spread in a drying pan for approximately 24 hours at a temperature of no more than 40° C., which yielded approximately 1.2 kg of hexa-citrated phytate.

出典