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Physical & Chemical properties

Melting point / freezing point

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Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12 April 2017 to 20 June 2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
according to guideline
Guideline:
other: : As per FCC 9 monograph
Deviations:
no
Principles of method if other than guideline:
Principle of test: To determine melting point of substance


Test Conditions:
- Progammable microprocessor based Melting Point Apparatus (Model : VMP – PM)
- Temerature range of instrument is about 2oC above room temperature & upto 300oC
- Readability: ± 0.1oC
- Accuracy: ± 0.1%
- The unit works on 230 volts/50 Hz, (0.75 Kw max.)
- A.C. mains supply
- The instrument requirements: 200 ml silicon e oil & box of containers.
GLP compliance:
no
Other quality assurance:
other: ISO 9001: 2015
Type of method:
capillary method
Specific details on test material used for the study:
Test item: 2,5-Di tertiary 1,4- butyl benzoquinone
CAS No.: 2460-77-7
EC No.: 219-552-0
IUPAC Name: 2,5-di-tert-butylcyclohexa-2,5-diene-1,4-dione
Brand Name: YAPOX 2255
Appearance: Golden Yellow Powder
Purity: 99.71%

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 20016011417
- Expiration date of the lot/batch: june 2019
- Purity test date: 10.04.2017

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: To be stored in a clean, cool & dry place.
- Stability under test conditions: At Ambient temperature
- Solubility and stability of the test substance in the solvent/vehicle: Soluble in acetone, ethyl acetate & Insoluble in water
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: Not available

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: grinding (if particle size of test item is bigger)
- Preliminary purification step (if any): None
- Final dilution of a dissolved solid, stock liquid or gel: Not Applicable
- Final preparation of a solid: Not Applicable
Key result
Melting / freezing pt.:
ca. 152.4 °C
Atm. press.:
ca. 760 mm Hg
Decomposition:
no
Sublimation:
no
Conclusions:
The melting point of 2,5-Di Tertiary Butyl 1,4-Benzoquinone as estimated by capillary method was observed to be 152.4°C
Executive summary:

The melting point of 2,5-Di Tertiary Butyl 1,4 -Benzoquinone as estimated by capillary method was observed to be 152.4°C

Description of key information

The melting point of 2,5-Di Tertiary Butyl 1,4-Benzoquinone as estimated by capillary method is observed to be 152.4°C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
152.4 °C

Additional information

The melting point of 2,5-Di Tertiary Butyl 1,4-Benzoquinone as estimated by capillary method is observed to be 152.4°C