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LC721 Barium hydroxide octahydrate

extra pure


Order number Packaging Quantity Price €
AC27721 Plastic drum 50 g inquire


Product information
Synonyms Caustic baryta, Barium oxide hydrate octahydrate
Hill Formula BaH2O2 * 8 H2O
Chemical formula Ba(OH)2 * 8 H2O
HS Code 2816 40 00
EC number 241-234-5
Molar mass 315.48 g/mol
EC index number 056-002-00-7
CAS number 12230-71-6


Chemical and physical data

Solubility 72 g/l (20 °C)
Melting point 78 °C
Molar mass 315.48 g/mol
Density 2.18 g/cm3 (20 °C)
Bulk density 900 – 1100 kg/m3
pH value ca.12.5 (50 g/l, H2O, 20 °C) (slurry)


Safety information according to GHS
Hazard Statement(s) H332: Harmful if inhaled.
H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
Precautionary Statement(s) 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.
Signal Word Danger
Hazard Pictogram(s)
Storage class 8 B Non combustible, corrosive substances
WGK WGK 1 slightly water endangering
Disposal 14
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).


Safety information
R Phrase R 20/22-34
Harmful by inhalation and if swallowed.Causes burns.
S Phrase S 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger harmful, corrosive
Hazard Symbol Corrosive


Transport information
Declaration (transport by sea) IMDG-Code UN 2923 CORROSIVE SOLID, TOXIC, N.O.S.(BARIUM HYDROXIDE), 8 (6.1), II, Segregation Group: 18 (Alkalis)
Declaration (transport by air) IATA-DGR UN 2923 CORROSIVE SOLID, TOXIC, N.O.S.(BARIUM HYDROXIDE), 8 (6.1), II


Toxicological data
LD 50 oral LD50 rat 550 mg/kg