Borax

Base Information

• Chemical Name: Borax
• CAS No.: 1303-96-4
• Deprecated CAS: 12322-85-9,12447-40-4,1344-90-7,61028-24-8,71377-02-1,910783-71-0,950582-60-2,1242163-03-6,1443500-22-8,1820039-99-3,1242163-03-6,12447-40-4,1344-90-7,1443500-22-8,1820039-99-3,61028-24-8,71377-02-1,910783-71-0,950582-60-2
• Molecular Formula: Na2B4O7^.10(H2O)
• Molecular Weight: 381.42
• Hs Code.: 28401990
• European Community (EC) Number: 603-411-9,615-285-2
• ChEMBL ID: CHEMBL3833375
• DSSTox Substance ID: DTXSID701014356
• ICSC Number: 0567
• Wikidata: Q5319
• Wikipedia: Borax
• Mol file: 1303-96-4.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 Borax

Chemical Property:

• Appearance/Colour: Colourless to grey-white crystals or powder
• Melting Point: 75 °C
• Boiling Point: 320°C
• PSA: 184.57000
• Density: 1.73 g/mL at 25 °C(lit.)
• LogP: -2.74580
• Water Solubility.: 60 g/L (20℃)
• Hydrogen Bond Donor Count: 10
• Hydrogen Bond Acceptor Count: 17
• Rotatable Bond Count: 0
• Exact Mass: 382.0868084
• Heavy Atom Count: 23
• Complexity: 121

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn:Harmful
• Statements: R62:
• Safety Statements: S36/37:

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: B1(OB2OB(OB(O1)O2)[O-])[O-].O.O.O.O.O.O.O.O.O.O.[Na+].[Na+]
• Inhalation Risk: Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered.
• Effects of Short Term Exposure: The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system and kidneys. This may result in impaired functions.
• Effects of Long Term Exposure: Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the testes. Animal tests show that this substance possibly causes toxicity to human reproduction or development.
• Chemical Properties and Structure: Borax (Sodium Tetraborate Pentahydrate, Na2B4O7.5H2O) is a sodium borate compound containing 5 mol of water. It belongs to the monoclinic crystal system with the space group C2/c. In its crystallographic structure, each sodium ion is positioned in an inversion symmetry and exhibits a distorted octahedral geometry. Borax readily dissolves in water, forming conjugated acid-base pairs NaB(OH)4 and H3BO3.
• Industrial and Agricultural Uses: Widely used in industry, borax is included in glass production to enhance viscosity, surface hardness, and durability, contributing to heat insulation.; Applied in agriculture to increase productivity and improve product quality by acting as a micronutrient for plant growth, promoting root growth, and influencing photosynthesis and fertilization.
• Chemical Cross-linking Agent: Borax acts as a chemical cross-linker due to its low toxicity, cost-effectiveness, and water solubility.; In an aqueous solution, borax dissociates into trigonal boric acid (B(OH)3) and tetrahydroxy borate ion (B(OH)4鈥?), capable of reacting with functional groups of polymers.; The pH of the system influences cross-linking, with higher pH resulting in increased cross-linking reactions and enhanced mechanical properties of polymer films.
• Applications in Hydrogel Formation: Utilized in the preparation of environmentally friendly hydrogels from cellulose, borax facilitates cross-linking between hydroxyl groups of cellulose chains.; The incorporation of borax enhances the swelling ratio and gel fraction of cellulose hydrogels, providing super absorbent features.; Cross-linked cellulose-based hydrogels demonstrate antibacterial activity against gram-positive bacteria and flame-retardant properties.
• Safety and Eco-Friendliness: Borax is considered non-toxic and eco-friendly, making it suitable for various applications in industry, agriculture, and hydrogel formation. It is an efficient cross-linking agent, enabling the rapid formation of hydrogels in substances with active hydroxyl groups.

Technology Process of Borax

There total 3 articles about Borax 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:

→ borax (1330-43-4,1303-96-4)

Guidance literature:

In toluene; for 3 - 4h; Purification / work up; Heating / reflux;

Reference yield:

tellurium (14683-12-6) + sodium tetrahydroborate (16940-66-2) + water (7732-18-5) → borax (1330-43-4,1303-96-4) + sodiumhydrogen telluride

Guidance literature:

at 40 - 50 ℃; for 0.5h; Inert atmosphere;

DOI:10.1016/j.saa.2019.01.057

Reference yield:

sodium tetraborate pentahydrate → borax (1330-43-4,1303-96-4)

Guidance literature:

at 350 ℃;

DOI:10.1134/S1070363219040017

upstream raw materials:

tellurium

sodium tetrahydroborate

water

Downstream raw materials:

ibandronate monosodium

sodium metaborate

zirconium diboride

Refernces

• 1、 Gu, Yingchun,Lin, Dayong,Fei, Xuening,Chen, Yongqiang,Wang, Cuihong,Yang, Qi,Tang, Yalin. "Labeling of Microthrix parvicella in situ: A novel FRET probe based on bisoctyl rhodamine B". . p. 263 - 271. Retrieved 2019/01/30.