Sodium Hydroxide
✓ EU AllowedAlso known as: lye What-it-does: buffering Official CosIng Information All Functions: buffering, denaturant CAS #: 1310-73-2 | EC #: 215-185-5 Ph
Identification
CAS Number 1310-73-2
EINECS / EC 215-185-5
CosIng Ref 37890
Chemical Name sodium hydroxide
IUPAC Name —
Formula HNaO
Mol. Weight 39.997 g/mol
SMILES [OH-].[Na+]
InChIKey HEMHJVSKTPXQMS-UHFFFAOYSA-M
Function & Classification
Primary Function buffering Official CosIng Information All Functions: buffering
Secondary Functions denaturant CAS #: 1310-73-2 | EC #: 215-185-5 Ph. Eur. Name: Natrii Hydroxidum | Chemi
Origin Synthetic
Category Minerals & Inorganics
Manufacturer INOVYN (INEOS)
EU Regulatory Status
Safety Profile
1 / 10
Skin Type Compatibility
Fungal Acne Safe ✓ Safe
Toxicology Profile
NOAEL 40 mg/kg bw/day (oral, rat) ECHA / WHO
Sensitization Non-sensitizer
Genotoxicity Non-genotoxic
Phototoxicity Non-phototoxic
LD₅₀ Oral 325 mg/kg (rat)
Skin Irritation (Draize) 3.0 / 4.0 ⚠
Eye Irritation (Draize) 3.5 / 4.0 ⚠
Formulation Guidelines
Benefits buffering Official CosIng Information All Functions: buffering, denaturant CAS #: 1310-73-2 | EC #: 215-185-5 Ph. Eur. Name: Natrii Hydroxidum | Chemi
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