Burn ERC-20 Token

It is possible to proceed an ERC-20 Token burning test using Remix.

There are two ways to burn ERC-20 Token.

• Sending to a Dead Wallet Address

• Burning by the Administrator

All examples are based on WEMIX3.0 Testnet.

1 . Sending to a Dead Wallet Address

First, let's proceed with the burning process by sending the ERC-20 Token to the Dead Wallet address.

Write ERC-20 Contract and Check ERC-20 Token should proceed first.

Sending to a Dead Wallet Address

Once adding the Token is completed after deploying ERC-20 Contract, select the added ERC-20 Token and proceed with 'Send' to the Dead Wallet address.

Send Token_WT at MetaMask

Select 'Send' in the figure above. After then enter the Dead Wallet address and the quantity of Token you want to burn.

Dead Wallet Address

0x000000000000000000000000000000000000dEaD

The figure below is the example of buring 10,000,000 WT Tokens to the Dead Wallet address.

example of burning ERC-20

When you select 'Next' after entering Token amount that you want to burn, a MetaMask pop-up appears and a screen showing the default 'Gas Fee' based on Ethereum appears.

MetaMask, default 'Gas fee'

WEMIX has a different fee policy than Ethereum, so press the 'Site suggested' button to change t the Gas Fee.

Selecting 'Advanced' on the screen below allows the user to set 'Max priority fee (GWEI)' and 'Max fee (GWEI)' manually.

MetaMask default 'Gas Fee' setting entry screen

'Gas Fee' setting

Currently, WEMIX is using a fixed 'Max priority fee (GWEI)' and the value is 100.

Max fee is a user-defined value and the minimum value is MaxPriorityFee+BASE_FEE.

BASE_FEE in WEMIX is variable according to EIP-1559. Therefore, for a transaction to be successfully created, it is recommended to set it as follows.

1. Max base fee (GWEI) = 101

2. Max priority fee (GWEI) = 100

Complete the Fee setup in the figure above and select 'Save' to be ready for burning Token as shown below.

Confirm ERC-20 Token burning

Select 'Confirm' in the figure above to burn ERC-20 Token.

If a green check mark appears at the bottom of the Remix screen as shown below, the burning ERC-20 Token is completed normally.

Complete ERC-20 Token burning

If you select the ERC-20 Token that you created on the Token List page in Testnet Explorer., you can confirm that the ERC-20 Token has been burned normally.

WEMIX3.0 Testnet Explorer

2 . Burning by the Administrator

Second, we will proceed with the burning ERC-20 Token process by the Administrator in Remix.

Write ERC-20 Contract and Check ERC-20 Token should proceed first.

Burning ERC-20 Token directly

You can see the contents of the deployed contract in the "Deployed Contracts" section of the screen where the ERC-20 Contract was deployed.

Select 'burn' to enter account and amount. In account, enter the deployed address, and in account, enter the quantity you want to burn.

The figure below shows an example of burning 999 WBT Token after deploying WEMIX BurnToken Contract.

example of buring ERC-20

When 'transact' is selected after entering the account and amount, a MetaMask pop-up appears as shown below, and a screen showing the default "Gas Fee" based on Ethereum appears.

MetaMask, default 'Gas fee'

WEMIX has a different fee policy than Ethereum, so press the 'Site suggested' button to change t the Gas Fee.

Selecting 'Advanced' on the screen below allows the user to set 'Max priority fee (GWEI)' and 'Max fee (GWEI)' manually.

MetaMask default 'Gas Fee' setting entry screen

'Gas Fee' setting

Currently, WEMIX is using a fixed 'Max priority fee (GWEI)' and the value is 100.

Max fee is a user-defined value and the minimum value is MaxPriorityFee+BASE_FEE.

BASE_FEE in WEMIX is variable according to EIP-1559. Therefore, for a transaction to be successfully created, it is recommended to set it as follows.

1. Max base fee (GWEI) = 101

2. Max priority fee (GWEI) = 100

Complete the Fee setup in the figure above and select 'Save' to be ready for deployment as shown below.

Confirm Example ERC-20 burning

Select 'Confirm' in the figure above to proceed with the contract deployment.

If a green check mark appears at the bottom of the Remix screen as shown below, the deployment is completed normally.

Complete Example ERC-20 burning

If you select the ERC-20 Token that you created on the Token List page in Testnet Explorer, you can confirm that the ERC-20 Token has been burned normally.

WEMIX3.0 Testnet Explorer