A man is about to face court charged with manufacturing explosives at a Queensland home rocked by a major blast last week.

The blast at a West Ipswich home tore a 37-year-old man's hands to pieces on Thursday. Another man, 43, suffered only minor injuries.

Since then, the police bomb squad has been detonating stockpiles of highly explosive chemicals at the property.

Police say the chemicals are highly explosive - "not the sort of thing you'd find at Bunnings".

Investigators are still trying to determine why the chemicals were at the house.

A 43-year-old man has been charged over last week's blast, police said on Monday.

He is accused of attempting to destroy property by explosives, unlawful deposition of explosives or noxious substances and manufacturing explosives without authority.

He is also charged with acts intended to cause grievous bodily harm and drug offences. He will face the Ipswich Magistrates Court on Monday.

Bomb squad officers are still searching the Clay Street home. On Sunday, they detonated more chemicals at the scene.

The 37-year-old, who lost fingers and suffered a groin injury in the blast, remains in hospital.