The route of entry statement "Extremely hazardous by skin contact — rapidly absorbed through the skin" would most likely appear with which signal word?

The phrase "Extremely hazardous by skin contact — rapidly absorbed through the skin" indicates a high level of risk associated with the chemical's potential effects on human health, particularly regarding skin exposure. In the context of chemical labeling, the signal word "DANGER" is used to convey that the substance poses a significant or immediate threat, making it appropriate for situations where exposure could lead to severe health consequences.

This signal word is typically reserved for the most hazardous materials because it alerts handlers to be extremely cautious when using or handling the substance. It signifies that the chemical can cause serious injury or potentially fatal effects upon contact, reinforcing the urgency of following safety protocols.

In contrast, other signal words such as "WARNING" and "CAUTION" denote lower levels of risk or severity. "WARNING" might indicate a moderate hazard, while "CAUTION" suggests that the handling of the substance requires basic safety measures but does not present an immediate severe risk. Therefore, they would not accurately reflect the severity of the hazards associated with a chemical that can be absorbed rapidly through the skin and is considered extremely hazardous.