Sodium Hydroxide (Caustic Soda) 1N

CAS number 1310-73-2
MDL number MFCD00011324
EC index number 011-002-00-6
EC number 215-185-5
PubChem Substance ID 329824556

Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with formula NaOH.

Sodium hydroxide is used in many industries in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents and as a drain cleaner.

Concentration: 1N

Download SDS View SDS
SKU: n/a.



Physicochemical Information
Density 2.13 g/cm3 (20 °C)
Melting Point 319 – 322 °C
pH Value >14 (100 g/l, H₂O, 20 °C)
Solubility 1090 g/l
Stability hygroscopic
Molecular Weight 40.00
Hill formula HNaO
Chemical formula NaOH


Safety Information
Hazard symbol GHS05: Corrosive
GHS08: Aspiration Hazard
Signal Word Danger
Hazard Element H290: May be corrosive to metals.
H314: Causes severe skin burns and eye damage.
Precautionary Statements P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.
P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
WGK Germany WGK 1 slightly hazardous to water
RTECS WB49000000
Flash Point (C°) Not applicable
R Phrase R35: Causes severe burns.
S Phrase S 26-37/39-45: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).


Storage & Transport Information
Storage Store at +5°C to +30°C in dry place
Declaration (railroad and road) ADR, RID UN 1823 , 8, II
Declaration (transport by air) IATA-DGR UN 1823 , 8, II
Declaration (transport by sea) IMDG-Code UN 1823 , 8, II, Segregation Group: 18 (Alkalis)