Page 182 - Materials Chemistry, Second Edition

168 Part 2b: Operational annex

Natural resource Cas-number ADP (in kg antimony eq./kg)
radium (Ra) 7440–14–4 2.36E7
radon (Rn) ??? 1.2E20
rhenium (Re) 7440–15–5 0.766
rhodium (Rh) 7440–16–6 32.3
rubidium (Rb) 7440–17–7 2.36E–9
ruthenium (Ru) 7440–18–8 32.3
samarium (Sm) 7440–19–9 5.32E–7
scandium (Sc) 7440–20–2 3.96E–8
selenium (Se) 7782–49–2 0.475
silicium (Si; silicon) 7440–21–3 2.99E–11
silver (Ag) 7440–22–4 1.84
Sodium (Na) 7440–23–5 8.24E–11
strontium (Sr) 7440–24–6 1.12E–6
7704–34–9 0.000358
sulfur (S)
tantalum (Ta) 7440–25–7 6.77E–5
tellurium (Te) 13494–80–9 52.8
terbium (Tb) 7440–27–9 2.36E–5
thallium (Tl) 7440–28–0 5.05E–5
thorium (Th) 7440–29–1 2.08E–7
thulium (Tm) 7440–30–4 8.31E–5
tin (Sn) 7440–31–5 0.033
titanium (Ti) 7440–32–6 4.4E–8
tungsten (W); wolfraam 7440–33–7 0.0117
uranium (U) 7440–61–1 0.00287
vanadium (V) 7440–62–2 1.16E–6
xenon (Xe) 7440–63–3 17500
ytterbium (Yb) 7440–64–4 2.13E–6
yttrium (Y) 7440–65–5 3.34E–7
zinc (Zn) 7440–66–6 0.000992
Zirconium (Zr) 7440–67–7 1 .86E–5
crude oil 8012–95–1 0.0201
natural gas* nvt 0.0187
hard coal nvt 0.0134
soft coal nvt 0.00671
fossil energy** nvt 4.81e–4
* In kg natural gas !
** In kg antimony/MJ fossil energy !

Source: Guinée, 1995, with modifications for crude oil, natural gas, hard coal and soft coal.
Status: author.
Equation:

The indicator result is expressed in kg of the reference resource antimony. is the
Abiotic Depletion Potential of resource i, while (kg, except for natural gas and fossil
energy) is the quantity of resource i used.

Remark:
For fossil energy carriers, new ADPs have been calculated to replace those given in Guinée (1995). The
reason is that, contrary to what was stated in Guinée (1995), fossil fuels may be assumed to be full
substitutes (both as energy carriers and as materials) which means that the ADPs should not be different,
at least in terms of total energy reserve. Hence, an overall fossil energy ADP has first been calculated,
using the equation:

ADP = Abiotic Depletion Potential Of fossil energy in kg antimony eq./MJ fossil energy;