Note: Ingredients listed on restricted chemical lists
EC/CAS
1310-73-2
Name of the chemical
Potassium or sodium hydroxide (20)
Concentration
50-70
General Information
Version
1.11
Revision date
2025-08-10
Product name
CAUSTIC SODA 50%
1.2.1 Relevant identified uses
Reserved for industrial and professional use
Emergency telephone
1-800-535-5053
Icons in SDS
Company Information
company name
Research Products
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H290, H302, H314, H335
Hazard statements
Code
Statements
H290
May be corrosive to metals
Section 2
SECTION 2: Hazards identification
GHS Classification Corrosive to metals Category Acute toxicity (Oral) Category 4 Skin corrosion Category 1A Serious eye damage Category Specific target organ toxicity Category 3 (Respiratory system) single exposure
Hazard pictograms
Am
Signal word
Danger
Hazard statements
H290 May be corrosive to metals. H302 Harmful if swallowed. H314 Causes severe skin burns and eye damage. H335 May cause respiratory irritation.
Prevention
P234 Keep only in original container. P261 Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
Response
P301 + P312 + P330 IF SWALLOWED: Call a POISON CENTER doctor if you feel unwell. Rinse mouth. P301 + P330 + P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER doctor. P305 + P351 + P338 + P310 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/ doctor. P363 Wash contaminated clothing before reuse. P390 Absorb spillage to prevent material damage.
Storage
P403 + P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up. P406 Store in corrosive resistant container with a resistant inner liner.
Disposal
P501 Dispose of contents/ container to an approved waste dis- posal plant.
2.3 Other hazards
None known.
2.1 Classification of the substance or mixture
Corrosive to metals : Category 1 Acute toxicity (Oral) : Category 4 Skin corrosion : Category 1A Serious eye damage : Category 1 Specific target organ toxicity : Category 3 (Respiratory system) - single exposure
