Sodium metaborate

Base Information

• Chemical Name: Sodium metaborate
• CAS No.: 7775-19-1
• Deprecated CAS: 161374-81-8,37354-60-2,950582-56-6,1437319-05-5,1449469-60-6,1853278-50-8,1437319-05-5,1449469-60-6,1853278-50-8,37354-60-2,950582-56-6
• Molecular Formula: NaBO2
• Molecular Weight: 65.7996
• Hs Code.: 2840200000
• European Community (EC) Number: 231-891-6
• UNII: Z6Q395A23R
• DSSTox Substance ID: DTXSID2034386
• Nikkaji Number: J44.058B
• Wikipedia: Sodium_metaborate
• Wikidata: Q3333421
• Mol file: 7775-19-1.mol

Synonyms:disodium borate, heptahydrate;disodium borate, monohydrate;Komex;monosodium metaborate;sodium borate;sodium borate (NaBO2);sodium diborate;sodium meta borate;sodium metaborate;sodium tetraborate

Chemical Property of Sodium metaborate

Chemical Property:

• Appearance/Colour: Colorless hexagonal system crystals
• Melting Point: 966 °C
• Boiling Point: 1434 °C
• PKA: 8.94[at 20 ℃]
• PSA: 40.13000
• Density: 2.464
• LogP: -0.88610
• Water Solubility.: g/100g solution H2O: 14.10 (0°C), 22.00 (25°C), 55.60 (100°C); solid phase, NaBO2 ·4H2O (0°C, 25°C), NaBO2 · 2H2O (100°C) [KRU93]
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 65.9889037
• Heavy Atom Count: 4
• Complexity: 13.5

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metalloid Compounds (Boron)
• Canonical SMILES: B(=O)[O-].[Na+]
• Description: Sodium Metaborate is the sodium salt of Metaborate. Sodium metaborate is used in the manufacturing of borosilicate glasses. It is also a component of herbicides and antifreeze1. It can also be used as an oil additive with anti-wear properties2. Sodium metaborate electroreduction in the alkaline system can act as a novel desulphurization process of coal water slurry3. It also has role in hydrolysis of sodium borohydride to minimize the water utilization4. It can also act as a novel alkali in alkali/surfactant/polymer flooding5. It is also useful in the thermo-chemical production of sodium borohydride6, which is a safe and practical hydrogen storage material for on-board hydrogen production.
• Uses: Herbicide. Also available commercially as octahydrate and tetrahydrate.

Technology Process of Sodium metaborate

There total 18 articles about Sodium metaborate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

sodium tetrahydroborate (16940-66-2) + water (7732-18-5) → sodium metaborate (7775-19-1) + hydrogen (1333-74-0)

Guidance literature:

In water; NaBH4 hydrolized at 25°C; Kinetics;

DOI:10.1016/j.molcata.2006.05.037

Reference yield:

sodium tetrahydroborate (16940-66-2) + ammonia borane + water (7732-18-5) → sodium metaborate (7775-19-1) + ammonium metaborate + hydrogen (1333-74-0)

Guidance literature:

With hollow silica-nickel composite spheres; at 20 ℃; Time; Temperature; Activation energy; Catalytic behavior;

DOI:10.1016/j.jallcom.2013.11.134

Reference yield:

sodium tetrahydroborate dihydrate → sodium metaborate (7775-19-1) + sodium hydroxyborohydride + 2Na(1+)*B2H6O(2-) + hydrogen (1333-74-0)

Guidance literature:

With air; at 30 - 150 ℃; Temperature; Activation energy;

DOI:10.1007/s10973-017-6821-3

upstream raw materials:

sodium tetrahydroborate

water

tetraborane

boric acid

Downstream raw materials:

sodium tetrahydroborate

sodium perborate

2-bromo-5-chlorobenzaldehyde

5-ethoxy-pyrrolidin-2-one

Refernces

• 1、 Mascetti,Vlasse,Fouassier. "CRYSTAL CHEMISTRY OF THE NEW RARE-EARTH SODIUM BORATES Na3Ln(BO3)2(Ln equals La, Nd).". . p. 288 - 293. Retrieved 1981.
• 2、 Pi?kin, Mehmet Bur?in,Figen, Aysel Kantürk,Ergüven, Hatice. "Investigation of the reaction mechanism and kinetics of production of anhydrous sodium metaborate (NaBO2) by a solid-state reaction". . p. 569 - 583. Retrieved 2013.
• 3、 Huang, Zhenguo,Liu, Jiangwen,Ouyang, Liuzhang,Shao, Huaiyu,Wang, Hui,Zhong, Hao,Zhu, Min,Zhu, Yongyang. "Closing the Loop for Hydrogen Storage: Facile Regeneration of NaBH4 from its Hydrolytic Product". supporting information. p. 8623 - 8629. Retrieved 2020/03/30.