12230-71-6

Basic information

• Product Name: Barium hydroxide octahydrate
• Synonyms: Barium Hydroxide, Octahydrate, Reagent;barium hydroxide octanhydarate;Barium dihydroxide octahydrate;Barium hydroxide octahydrate, 98+%, for analysis;BARIUM HYDROXIDE OCTAHYDRATE, 99.99%;Barium hydroxide octahydrate, for analysis;Barium hydroxide octahydrate, for analysis ACS;Barium hydroxide octahydrate,98+%,for analysis ACS
• CAS NO: 12230-71-6
• Molecular Formula: BaH18O10
• Molecular Weight: 315.46
• EINECS: 241-234-5
• Product Categories: Reagents and Controls for Phosphoprotein Analysis;A-B, Puriss p.a. ACS;Puriss p.a. ACS;Chemical Synthesis;Inorganic Bases;Synthetic Reagents;A-B, Puriss p.a.;Analytical Reagents for General Use;Puriss p.a.;metal hydroxide;Industrial/Fine Chemicals;ACS GradeChemical Synthesis;Essential Chemicals;Routine Reagents;Dephosphorylation ReagentChemical Synthesis;Inorganic BasesPost-Translational Modification;Phosphorylation Analysis;Protein Modification;Protein Structural Analysis
• Mol File: 12230-71-6.mol
• Article Data: 0

Chemical Properties

• Melting Point: 78 °C(lit.)
• Boiling Point: 100oC at 760mmHg
• Appearance: White/Solid
• Density: 2.18
• Storage Temp.: Store at +5°C to +30°C.
• Solubility: 72g/l
• Water Solubility: 56 g/L (15 ºC)
• Sensitive: Air Sensitive & Hygroscopic
• Stability: Stable.
• Merck: 14,977
• CAS DataBase Reference: Barium hydroxide octahydrate(CAS DataBase Reference)
• NIST Chemistry Reference: Barium hydroxide octahydrate(12230-71-6)
• EPA Substance Registry System: Barium hydroxide octahydrate(12230-71-6)

Safety Data

• Hazard Codes: C
• Statements: 20/22-34-20/21
• Safety Statements: 26-36/37/39-45
• RIDADR: UN 3262 8/PG 2
• WGK Germany: 1
• RTECS: CQ9200000
• F: 9-34
• TSCA: Yes
• HazardClass: 8
• PackingGroup: III
• Hazardous Substances Data: 12230-71-6(Hazardous Substances Data)

Usage

Description

Barium hydroxide is available as colourless or white crystals. It is odourless and soluble in water. It is stable under ordinary conditions of use and storage. It is incompatible with acids, oxidisers, and chlorinated rubber. Barium hydroxide is corrosive to metals such as zinc. Barium hydroxide is very alkaline and rapidly absorbs carbon dioxide from air, becoming completely insoluble in water. Barium hydroxide is used in analytical chemistry for the titration of weak acids. Barium hydroxide is used in organic synthesis as a strong base. Barium hydroxide decomposes to barium oxide when heated to 800°C.

Chemical Properties

white crystalline powder

Uses

Different sources of media describe the Uses of 12230-71-6 differently. You can refer to the following data:
1. Barium hydroxide octahydrate is extensively used in the manufacturing of barium salts and barium organic compounds; In manufacture of alkali, glass; in synthetic rubber vulcanization, in corrosion inhibitors, pesticides, sugar industry; boiler scale remedy; refining animal and vegetable oils; softening water. Catalyst in organic synthesis.
2. In manufacture of alkali, glass; in synthetic rubber vulcanization, in corrosion inhibitors, pesticides, sugar industry; boiler scale remedy; refining animal and vegetable oils; softening water. Catalyst in organic synthesis.
3. Used in manufacture of alkali, glass; in synthetic rubber vulcanization, alkalizing agent in water softening, boiler scale remedy, softening water.Barium hydroxide octahydrate is used in the centromeric heterochromatin banding technique. It acts as a precursor to prepare barium titanate, barium sulfate, barium phosphate and barium sulfide. Further, it is used in analytical chemistry for the titration of weak acids especially organic acids. It is involved in the preparation of cyclopentanone, diacetone alcohol and D-Gulonic gamma-lactone. In addition to this, it finds application in ester hydrolysis such as dimethyl hendecanedioate and decarboxylation of amino acids.

Application

Catalyzes the β-elimination of phosphoserine residues.Resin stabilizer; manufacture of oil and grease additives; raw material of pigment; sulfate removal agent.

Purification Methods

It crystallises from water (1mL/g) and readily absorbs CO2 from air. It effloresces to the monohydrate. It dehydrates to Ba(OH)2 in dry air at 100o. An aqueous solution (baryta water) absorbs CO2 to form a white precipitate of BaCO3.

InChI:InChI=1/Ba.8H2O/h;8*1H2/q+2;;;;;;;;

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Synthesis of rubber oil methyl ester (ROME) employing a two-step procedure, esterification using homogeneous catalyst followed by transesterification with heterogeneous catalyst was studied. The acid value of extracted RSO was reduced from 24 mg KOH/g to 2 mg KOH/g during esterification using 1....detailed

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Phase change materials have a predominant role in heat storage technology. This paper focused on experimental study of barium hydroxide octahydrate (BHO-Ba(OH)2·8H2O), which is a low temperature phase change material with the melting point at 78 °C and a large latent heat with reported values ...detailed