Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 294-409-3 | CAS number: 91722-09-7 Substance formed during processing of liquid steel or during production of iron castings. Consists primarily of fused silicates and trace elements as oxides as well as trace of alloying elements.
Density
Administrative data
Link to relevant study record(s)
Description of key information
The true density of solid slag is approximately 2.7 - 4 g/cm³ at ambient temperature.
Apperant density: 1.9 - 3 g/cm³
Bulk density: 0.7 - 1.4 g/cm³
From the same molten slag, the product obtained by rapid cooling (GBS)
is less dense than the product obtained by slow cooling (ABS)
Key value for chemical safety assessment
- Relative density at 20C:
- 3
Additional information
The density of solid slag is 3 - 4 kg/L at ambient temperature (Krajewsky and Krueger 1984).
BOS has a density >3.2 g/cm³ and a bulk density 1.5 - 1.6 g/cm³. (FEhS 2000 (Geiseler, Drissen, Kuehn, Schrey))The density of SMS is 3 g/cm³, the bulk density is 1.4 g/ cm³. (FEhS (Geiseler) 1997)
The density of EAF C is 3.4 g/cm³, the bulk density is 1.5 g/ cm³. (FEhS (Geiseler) 1997)
EAF S was measured to be 3.08 g/cm³ (3.14…3.18 for LMA 0 - 8 mm and LMA 0 - 32 mm), and the bulk density 1.2 g/cm³ (Parviainen,Tikkakoski, Kallio, Holappa, Kujala, Roininen 2007)
For granulated blast furnace slag (GBS) the following data are reported by Euroslag (2003):
· true density: 2.796 - 3.070 g/cm³
· apparent density: 2.021 - 2.843 g/cm³
· bulk density: 0.689 - 1.427 g/cm³ (porosity: 2.5 - 31.2 % v/v, grain size < 0.5 mm: 3.6 - 78.6 % w/w, grain size < 3.2 mm: 81.1 - 100.0 % w/w)
These data are supported by results of Ehrenberg (2001), who measured densities of GBS of 2.9 g/cm³, and a bulk density of 1.3 g/cm³.
GBS consists predominantly of glass phases. Due to the low order of the molecules and ions in the liquid, the product obtained by rapid cooling (GBS) is less compact than the product obtained by slow cooling (ABS) with tight clusters in crystal lattices. For slag from the same manufacturer, the compacted apparent density of ABS is 3 g/cm3, the compacted apparent density of GBS is 2.7 g/cm3(Tossavainen and Lind 2005).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
