§ Mr. Peter RobinsonTo ask the Secretary of State for Transport what plans he has(a) to classify rock salt and its flow agent ferrocyanide as hazardous substances and (b) to restrict their use in highway winter maintenance operations. [118091]
§ Mr. JamiesonSodium hexacyanoferrate(II), rather than ferrocyanide, is the most common anti-caking (or "flow") agent used by the salt industry with rock salt for highway winter maintenance operations.
There are no plans to classify rock salt and its anti-caking agent as hazardous substances nor are there plans to further restrict their use in highway winter maintenance operations.