Magnesium dihydrogen di-L-aspartate

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Qualifier:

no guideline followed

Principles of method if other than guideline:

- Principle of test: Determination of melting point in different Magnesium complexes
- Short description of test conditions: Not reported
- Parameters analysed / observed: Melting point, Solubility

GLP compliance:

not specified

Type of method:

other: Not reported

Key result

Decomposition:

yes

Decomp. temp.:

300 °C

Remarks on result:

other: Atmospheric pressure was not reported

Conclusions:

According to A. N. Yunuskhodzhaev et al. (1990) the test item has no melting point, instead it decomposes at 300 °C.

Executive summary:

According to A.  N.  Yunuskhodzhaev et al. (1990) the test item has no melting point, instead it decomposes at 300 °C.

Description of key information

According to published data from Yunuskhodzhaev et al. (1990) the substance has no melting point but decomposes instead at 300°C.

Additional information

Magnesium-L-hydrogenaspartate-2-hydrate was obtained by dissolving with  heating  2.66 g (0.02 mole) of  asparaginic acid and 0.41 g (0.01 mole) of magnesium hydroxide in 35 mL of water.  The resulting solution was  filtered, and the complex precipitated as a powder from the filtrate by adding a tenfold excess of acetone. The colorless solid was filtered off and washed with acetone and ether. No melting point was determined but decomposition was observed at 300°C.