## Concept information

### PREFERRED TERM

2-methylheptane and 3-methylheptane number concentration

### DEFINITION

- Number concentration means number of molecule per unit volume, and is used in the construction molecular_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. 2-methylheptane and 3-methylheptane is a mixture of two compunds and belongs to the group of alkanes.

### BROADER CONCEPT

### OBSERVATION MATRIX

### OBJECT OF INTEREST

### OBSERVED PROPERTY

### URI

https://vocabulary.actris.nilu.no/actris_vocab/2-methylheptaneand3-methylheptanenumberconcentration

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