In man, calcium hydroxide caused eye burns and irritation of the respiratory tract, and was probably the cause of skin burns following contact with wet cement. It was severely irritating to the rabbit eye and had a low acute oral toxicity in rats. Lung effects have been seen in workers in the cement industry and in laboratory animals following repeated inhalation of calcium hydroxide dust. No clear evidence of carcinogenicity was seen in a number of limited animal studies involving repeated ingestion or application to the mouth tissues, but it has been suggested that the local changes seen may increase the animals’ susceptibility to the carcinogenic activity of other chemicals.

Date of Publication: 1988

Number of Pages: 5

CAS Number*: 1305-62-0

Format: PDF available for immediate download

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