TURI - Toxics Use Reduction Institute

From Material Safety Data Sheet

Chalk

Chemical name: Calcium Carbonate

Inhalation:

Avoid long term exposure by inhalation of dust

Ingestion:

Ingestion should not cause any significant health problem.

Skin Contact:

Avoid long term exposure to skin

Eye Contact:

May cause irritation of eyes.

Chronic Exposure:

No data

Acute Effects:

No data

Aggravation of Pre-existing Conditions:

Persons with pre-existing eye, skin, or respiratory problems may be at increased risk.

What does this mean?

Avoid inhaling chalk dust when using it. Chalk dust can irritate your eyes. If eye contact occurs, flush eyes with large quantities of water.