Catalyst TON & TOFChemistry

Catalyst Turnover Number (TON) & Turnover Frequency (TOF) Calculator

Calculate catalyst productivity (Turnover Number - TON) and instantaneous catalytic speed (Turnover Frequency - TOF in h^-1 and s^-1) for homogeneous and heterogeneous systems.

Calculated Result

Turnover Number (TON)

2,000cycles

Calculator Inputs

mmol
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mmol
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h
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Turnover Number (TON)

2,000cycles

Turnover Frequency (TOF per hour)

500 h⁻¹

Turnover Frequency (TOF per second)

0.14 s⁻¹

Excellent Industrial Catalytic Efficiency (TON >= 1,000): The catalyst exhibits high durability and productivity suitable for green synthesis.

Catalytic Turnover Metrics Profile

TON Value
2,000 -(80%)
TOF Value (h⁻¹)
500 h⁻¹(20%)

Standard industrial and synthetic chemistry tool for quantifying catalytic activity and catalyst lifetime.

Calculation Methodology

Turnover Number: TON = moles of desired product / moles of active catalyst. Turnover Frequency: TOF = TON / reaction time (h^-1). TOF (s^-1) = TOF (h^-1) / 3600. TON measures durability/productivity; TOF measures kinetic velocity.

Frequently Asked Questions

TON quantifies total catalytic lifespan and productivity (total product molecules generated per active site), whereas TOF measures the kinetic speed per unit time.

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