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Substance : Potassium or sodium hydroxide

Substance Potassium or sodium hydroxide 
CAS # 1310-58-3 / 1310-73-2 
EC # 215-181-3 / 215-185-5 
Name of Common Ingredients Glossary POTASSIUM HYDROXIDE / SODIUM HYDROXIDE 
INN/ISO/AN  
Regulation (EU) 2016/622
Regulated By 96/41/EC
Other Directives/Regulations
Annex/Ref # III/15a
Product Type, body parts (a) Nail cuticle solvent
(b) Hair straightener
(c) pH adjuster for depilatories
(d) Other uses as pH adjuster
15d- Callosity softener/remover 
Maximum concentration in ready for use preparation (a) 5% (5)
(b)
1. 2% (5)
2. 4.5% (5)
15d- 1,5% (5) 
Other (b)
1. General use
2. Professional use
(c) up to pH 12.7
(d) up to pH 11

15 d Contains alcakali, Avoid contact with eyes
Keep out of reach of chindren ans Read directions for use carefully
 
Wording of conditions of use and warnings (a) Contains alkali
Avoid contact with eyes
Can cause blindness
Keep out of reach of children
(b) 1. Contains alkali
Avoid contact with eyes
Can cause blindness
Keep out of reach of children
2. For professional use only
Avoid contact with eyes
Can cause blindness
(c) Keep out of reach of children
Avoid contact with eyes
 
SCCS opinions
Chemical/IUPAC Name  
Identified INGREDIENTS or substances e.g.
Note III (5) The quantity of sodium, potassium or lithium hydroxide is expressed as weight of sodium hydroxide. In cases of mixtures, the sum should not exceed the limits given "Maximum concentration in ready for use preparation" 
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