Note: Ingredients listed on restricted chemical lists
EC/CAS
1310-73-2
Name of the chemical
sodium hydroxide
Concentration
>=0.1-<=1
General Information
Version
7.1
Revision date
2026-07-15
Product name
Guanidine hydrochloride solution
1.2.1 Relevant identified uses
Laboratory chemicals, Synthesis of substances
Emergency telephone
800-424-9300, +1-703- 527-3887
Icons in SDS
Company Information
company name
Sigma-Aldrich Inc
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H290, H302+H332, H315, H319, H402
Hazard statements
Code
Statements
H290
May be corrosive to metals
Section 2
SECTION 2: Hazards identification
Other hazards
None known
Signal word
Warning
Hazard statements
H290 May be corrosive to metals. H302 + H332 Harmful if swallowed or if inhaled. H315 Causes skin irritation. H319 Causes serious eye irritation. H402 Harmful to aquatic life.
Prevention
P234 Keep only in original packaging. P261 Avoid breathing mist or vapours. 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. P273 Avoid release to the environment. P280 Wear protective gloves/ eye protection/ face protection.
Response
P301 + P312 + P330 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth. P302 + P352 IF ON SKIN: Wash with plenty of water. P304 + P340 + P312 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/ doctor if you feel unwell. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P332 + P313 If skin irritation occurs: Get medical advice/ attention. P337 + P313 If eye irritation persists: Get medical P390 Absorb spillage to prevent material damage.
Storage
P406 Store in a corrosion resistant container with a resistant inner liner.
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
2.1 Classification of the substance or mixture
(29 CFR 1910.1200) Hazards for the product as supplied Corrosive to metals : Category 1 Acute toxicity (Oral) : Category 4 Acute toxicity : Category 4 (Inhalation) Skin irritation : Category 2 Eye irritation : Category 2A Short-term (acute) : Category 3 aquatic hazard Other hazards