Caustic soda is a white, solid substance that appears as pellets. It has an odorless and highly alkaline pH of 12. Proper storage, transportation, and handling procedures should be followed to prevent injury. When in contact with water or acids, caustic soda generates considerable heat. Firefighters should not use water to extinguish fires, and protective equipment is necessary.

1. MSDS of caustic soda
Prepared by,
Shyam ramoliya – 91600108015
Abhay panseriya – 91600108019
Bhavin parmar – 91600108008
Mohit mansani - 91600108046

2. Physical Properties
• Colour :- white
• Form :- solid
• Appearance :- Pellets
• Odour :- odourless
• Physical state :- solid
• pH :- 12
• Melting point :- 318 °C
• Boiling point :- 1390 °C

3. Storage safety
• Use care in handling/storage.
• Keep containers tightly closed in a dry, cool and well-
ventilated place.
• Keep this material away from food, drink and animal
feed.
• Keep out of the reach of children.
• May attack some plastics, rubber and coatings.
• Keep containers tightly closed.

4. Transportation Safety
• Close the lid or cover of the container so that it is
airtight in order to avoid moisture absorption during
transportation.
• For transportation in drums, use boxcars, but if gondola
cars are used, cover the drums with sheets.
• The driver must be certain to close the manholes or
valves so that the liquid does not leak.
• When caustic soda is transported by ship, refer to the
“Ship Safety Law.”

5. Handling precaution
• Handle and open container with care.
• Do not get this material in your eyes, on your skin, or
on your clothing.
• Wash hands after handling and before eating.
• Avoid breathing dusts from this material.
• Considerable heat is generated when water or acid is
added, therefore when making solutions always add
the caustic to the water or acid with constant
stirring.

6. Health impact & Fire Hazards
• Suitable extinguishing media :- Do not use water.
Use extinguishing agent suitable for type of
surrounding fire.
• Protective equipment for firefighters :- Move
containers from fire area if you can do it without risk.
Wear full protective clothing, including helmet, self-
contained positive pressure or pressure demand
breathing apparatus, protective clothing and face
mask.

7. UN Classification Number & Other
codes
• UN number (solid) :- 1823
• UN number (solution) :- 1824
• CAS# :- 1310-73-2
• Catalog Codes :- SLS3298, SLS1081, SLS1705
SLS2503, SLS3925,
• HSN code :- 2815