Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15 Nov 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report Date:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
other: BS 4633 (Method for the Determination of Crystalizing Point)
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
no
Type of method:
method to determine freezing temperature

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
< -20 °C
Atm. press.:
ca. 1 013 hPa
Remarks on result:
other: Atmospheric pressure not measured. Normal conditions (ca. 1013 hPa) are assumed, based on test method.

Any other information on results incl. tables

Determination 1

Time(s)

Temperature(K)

Time(s)

Temperature(K)

0

295

1140

260

30

295

1170

259

60

294

1200

258

90

292

1230

258

120

290

1260

258

150

288

1290

257

180

284

1320

257

210

281

1350

257

240

279

1380

256

270

277

1410

256

300

275

1440

256

330

274

1470

256

360

272

1500

256

390

271

1530

256

420

270

1560

256

450

269

1590

255

480

268

1620

255

510

268

1650

254

540

267

1680

254

570

266

1710

254

600

265

1740

253

630

265

1770

253

660

265

1800

253

690

264

1830

253

720

264

1860

252

750

264

1890

252

780

263

1920

252

810

263

1950

252

840

263

1980

252

870

263

2010

252

900

262

2040

252

930

262

2070

252

960

262

2100

252

990

262

2130

252

1020

262

2160

251

1050

262

2190

251

1080

261

2220

250

1110

260

2250

250

 

Observations: The test material became increasingly viscous during cooling.

Result: Freezing temperature < 253 K.

 

 

Determination 2

Time(s)

Temperature(K)

Time(s)

Temperature(K)

0

293

1140

258

30

292

1170

257

60

291

1200

257

90

290

1230

257

120

288

1260

256

150

286

1290

256

180

283

1320

255

210

280

1350

255

240

278

1380

254

270

277

1410

254

300

275

1440

254

330

274

1470

253

360

273

1500

253

390

272

1530

253

420

271

1560

253

450

270

1590

253

480

269

1620

253

510

268

1650

253

540

267

1680

253

570

267

1710

253

600

266

1740

253

630

265

1770

253

660

264

1800

253

690

264

1830

252

720

263

1860

252

750

262

1890

252

780

262

1920

252

810

261

1950

251

840

261

1980

251

870

260

2010

251

900

260

2040

251

930

259

2070

251

960

259

2100

251

990

259

2130

250

1020

258

2160

250

1050

258

2190

250

1080

258

2220

250

1110

258

2250

250

 

Observations: The test material became increasingly viscous during cooling.

Result: Freezing temperature < 253 K.

Applicant's summary and conclusion

Conclusions:
The freezing temperature of the substance has been determined to be less than -20 °C (253 K).