Name | Magnesium phosphate |
Synonyms | Manganousphosphate MAGNESIUM PHOSPHATE Magnesium phosphate Trimagnesium Phosphate TRI-MAGNESIUM PHOSPHATE magnesiumphosphate,neutral MAGNESIUM PHOSPHATE TRIBASIC magnesiumphosphate(mg3(po4)2) MAGNESIUM ORTHOPHOSPHATE TRIBASIC |
CAS | 7757-87-1 |
EINECS | 231-824-0 |
InChI | InChI=1S/3Mg.2H3O4P/c;;;2*1-5(2,3)4/h;;;2*(H3,1,2,3,4)/q3*+2;;/p-6 |
Molecular Formula | Mg3O8P2 |
Molar Mass | 262.857722 |
Density | 503.3[at 20℃] |
Melting Point | 1184 °C |
Water Solubility | insoluble H2O; soluble dilute mineral acids [MER06] |
Physical and Chemical Properties | It can be divided into three types of magnesium phosphate containing 4, 5 or 8 molecules of bound water. White odorless and tasteless crystalline powder. All water of crystallization was lost at 400 °c. Soluble in dilute inorganic acid, almost insoluble in water. |
Use | Used as a precipitant and dental abrasive, food industry as a nutritional supplement, anti-caking agent |
HS Code | 2835299050 |
white monoclinic platelets. With 4, 5, 8 crystal water. Relative density (d15)2. 1950. Soluble in ammonium citrate, practically insoluble in cold water. The eight water crystalline magnesium phosphate lost 5 crystal water at 150 °c, and lost all crystal water when heated to 400 °c to become anhydrous.
thermal phosphoric acid is added into the reactor, light magnesium oxide is slowly added under stirring for neutralization reaction to generate magnesium phosphate solution, arsenic removing agent and heavy metal removing agent are added for solution purification, impurities such as arsenic and heavy metals were removed by filtration, and the filtrate was cooled, crystallized, separated and dried to obtain the finished product of edible magnesium phosphate.
used as a nutritional supplement, anti-caking agent. Used as precipitation agent, dental abrasive.
ADI-O -70mg/kg (in terms of phosphorus, FAO/WHO, 2001). GRAS (FDA,& Section; 182, 5434,2000). Should be stored in a cool, ventilated, dry warehouse, moisture, high temperature. With Isolation storage of toxic and hazardous substances. It is not allowed to be mixed with acid substances and toxic and hazardous substances during transportation to prevent rain and sun exposure. Handling should be careful to prevent packaging rupture. Fire, can use water, sand, foam fire and carbon dioxide fire extinguishing.
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
identification test | The same method as in "Magnesium hydrogen phosphate (01221). |
content analysis | a sample of about TS-158 mg is precisely weighed and dissolved in a mixture of 25ml of water and 10ml of dilute nitric acid solution (). If a precipitate is generated, it is filtered and dissolved by washing the precipitate with 1 ml of dilute nitric acid solution. The temperature was adjusted to about 50 °c and 75ml of ammonium molybdate test solution (TS-22) was added and kept at about 50 °c for 30min with occasional stirring. The pellet was then allowed to stand at room temperature for 16h or overnight, and the pellet was washed twice with 30-40ml of water each time in a decantation fashion, washing the filter paper. The precipitate was transferred to the same filter paper and washed with 1% potassium nitrate solution until the final wash was not acidic to litmus paper. The precipitate and filter paper were transferred into the clarifier, and 50.0ml of 1 mol/L sodium hydroxide was added. After stirring until the precipitate was dissolved, 3 drops of phenolphthalein test solution (TS-167) were added, the excess base was titrated with 0.5mol/L sulfuric acid. Each mL of 1 mol/L sodium hydroxide corresponds to 5.714mg of magnesium phosphate [Mg3(PO4)2]. |
toxicity | ADI 0-70mg/kg (total phosphate based on phosphorus, FAO/WHO,2001). GRAS(FDA,§ 182.5434,2000). |
usage limit | is limited to GMP (FDA,§ 184.1434,2000). As a limited amount of anti caking agent (FAO/WHO,1984); Milk |
Use | nutritional supplements; Anti-caking agents; Ph modifiers; Stabilizers. used as precipitant and dental abrasive, used in food industry as nutritional supplement, anti-caking agent |
production method | obtained by the reaction of magnesium oxide and phosphoric acid at high temperature. The octahydrate can be obtained from the phosphorus ash magnesium ore (bobierrite). |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |