Zinc acrylate

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

Study period:

2003

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

GLP compliance:

yes

Type of method:

capillary method

Specific details on test material used for the study:

Zinc diacrylate (SR111); CAS No.: 14643-87-9; Lot No.: 30715-6482; Purity 100 %

Key result

Remarks on result:

not determinable

When the test substance was heated, the first time there was no obvious change. Because of this, this test was repeated at individual temperatures for seperate capillaries rather than heating one capillary over the entire range (60 -300 degrees C). At about 235 to 240 degrees C, it was observed that the sample collapsed and chaged from white to colorless. The sample never liquified.

Conclusions:

Zinc acrylate did not melt under the testing conditions. It underwent homopolymerization at approximately 235 to 240 degrees centigrade, a phenomenon known to occur for these type of chemicals.

Executive summary:

A study was conducted according to testing Guideline OPPTS 830.7200 to determine the melting of zinc acrylate. Under the testing conditions, the appearance of solid zinc acrylate changed from white to colourless but did not liquify. Due to homopolymerisation of the substance at 235 to 240 degrees centigrade, a melting point could not be determined (Holyoke, 2003).

Description of key information

The melting point was determined according to OPPTS Guideline 830.7200 (Holyoke, 2003).

Additional information

No melting point but homopolymerization at approx. 235 to 240 °C.