Chemical and physical properties of wood chips
Chemical and physical properties of wood chips. For concentrations of metals, link here.
Link to this table
| Property | Range found in literature1 | Median value from literature |
|---|---|---|
| Total phosphorus (mg/kg) | 0.027 - 0.24 | 0.13 |
| Total nitrogen (mg/kg) | 0.31 – 1.8 | 0.38 |
| Total potassium (mg/kg) | 100-1600 | 709 |
| Total carbon (mg/kg) | 434-498 | 47.1 |
| pH | 3.34-5.07 | 3.47 |
| Cation exchange capacity (cmol/kg)1 |
|
|
| Electrical conductivity (ds/m) | ||
| Total calcium (mg/kg) | 600-6200 | 1190 |
| Total magnesium (%) | 60-6200 | 189 |
| Bulk density (g/cm3) | 0.138 - 0.422 | 0.293 |
| Water holding capacity (% by wt) | 58.5 | |
| Total pore space (%) | 60-63 | 61.5 |
Primary references for this data:
- Ima and Mann, 2007
- Hamid et al., 2016
- Pintor-Ibarra et al., 2016
- Kim et al., 2016
- Chandrasekaran et al., 2012
- Venner et al., 2011
- New York State Energy Research and Development Authority, 2013
1CEC increased as chip size decreased