Barium Hydroxide Monohydrate, CAS 22326-55-2, for grade-specific alkaline processing and barium-chemistry applications. Before requesting a quotation, confirm monohydrate identity, assay basis, carbonate and other impurity limits, physical form, moisture and carbon-dioxide protection, packaging and intended process, and request current TDS, COA and SDS.
Barium Hydroxide Monohydrate CAS 22326-55-2
- CAS: 22326-55-2
- Synonyms: Barium hydroxide monohydrate; Barium dihydroxide monohydrate; Barium hydroxide hydrate
- Einecs: 606-983-8
- Molecular Formula: Ba(OH)₂·H₂O
- Grade: Confirm on the offered specification and lot COA: monohydrate identity, assay basis, carbonate and other impurity limits, physical form, moisture and carbon-dioxide protection, packaging and intended process.
- Package: Moisture- and carbon-dioxide-protected compatible packaging; confirm configuration, quantity, transport and destination
Product Description
Barium Hydroxide Monohydrate, CAS 22326-55-2 and EC/List 606-983-8, is the monohydrate Ba(OH)₂·H₂O with a molar mass of about 189.36 g/mol. It is distinct from anhydrous barium hydroxide (CAS 17194-00-2) and the octahydrate. Use it only against a monohydrate-specific specification confirming assay basis, carbonate and other impurities, physical form and moisture/CO₂-protected packaging. Applications in alkaline processing and barium chemistry are grade- and process-specific; this page does not establish a fixed 99% grade or package.
FAQ - Technical & Supply Chain
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Q:
What is Barium Hydroxide Monohydrate CAS 22326-55-2?
A: Barium hydroxide monohydrate is Ba(OH)2·H2O, with EC/List number 606-983-8 and a molar mass of about 189.36 g/mol. It is normally a white powder that is only slightly soluble in water but forms a strongly alkaline solution, and it readily absorbs carbon dioxide from air to form barium carbonate. -
Q:
Is Barium Hydroxide Monohydrate interchangeable with the anhydrous or octahydrate form?
A: No. The monohydrate, CAS 22326-55-2, has one water molecule per formula unit, while anhydrous barium hydroxide is CAS 17194-00-2 and the octahydrate is Ba(OH)2·8H2O. Each form has a different formula weight, water content and assay basis, so the hydrate identity and dosage basis should be confirmed before substitution. -
Q:
What are the main industrial uses of Barium Hydroxide Monohydrate?
A: It is used in water purification and sulfate removal, preparation of barium salts and other barium compounds, lubricating oil and grease additives, sugar refining, analytical sulfate precipitation and selected alkaline process reactions. It can also serve as a catalyst or reagent in processes such as biodiesel transesterification, depending on the grade and formulation. -
Q:
Which specifications and impurity limits should be confirmed before purchase?
A: Confirm the Ba(OH)2 assay on a monohydrate basis, carbonate content, water or loss on drying, insoluble matter, chloride, sulfate, iron and particle form. Carbonate control is especially important because exposure to air can convert the hydroxide to barium carbonate. Commercial material is available at different purities, with some grades around 95% and others about 99% or higher. -
Q:
How should Barium Hydroxide Monohydrate be stored and handled?
A: Keep it in tightly closed packaging that limits moisture and carbon dioxide exposure, in a cool, dry, well-ventilated area away from acids. Barium hydroxide is corrosive to tissue and metals and has inhalation and ingestion hazards, so use dust control, suitable ventilation and chemical-resistant PPE during transfer and handling.
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