borax(anhydrous)
Anhydrous Borax
CAS: 1330-43-4
Molecular Formula: B4Na2O7
borax(anhydrous) - Names and Identifiers
| Name | Anhydrous Borax |
| Synonyms | disodium B4-Na2-O7 Antipyoninum heptahydrate anhydrousborax Anhydrous Borax Anhydrous borax borax(anhydrous) boron(+3) cation oxygen(-2) anion Sodium tetraborate Disodium tetraborate,anhydrous borates,tetra,sodiumsalt,anhydrous borates,tetra,sodiumsalts(anhydrous) borates,tetra,sodiumsalts(pentahydrate) disodium bicyclo[3.3.1]tetraboroxane-3,7-diolate 2,4,6-trioxa-1,3,5,7-tetraboraheptane-3,5-diolate, 1,7-dioxo-, disodium salt |
| CAS | 1330-43-4 |
| EINECS | 215-540-4 |
| InChI | InChI=1/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1 |
| InChIKey | UQGFMSUEHSUPRD-UHFFFAOYSA-N |
borax(anhydrous) - Physico-chemical Properties
| Molecular Formula | B4Na2O7 |
| Molar Mass | 201.22 |
| Density | 2.367 g/mL at 25 °C (lit.) |
| Melting Point | 741 °C (lit.) |
| Boling Point | 1575°C |
| Flash Point | 1575°C |
| Water Solubility | 26 g/L (20 ºC) |
| Solubility | H2O: 0.1M at20°C, clear, colorless |
| Vapor Presure | 7.3 hPa (1200 °C) |
| Appearance | White solid |
| Specific Gravity | 2.367 |
| Color | White |
| Exposure Limit | ACGIH: TWA 2 mg/m3; STEL 6 mg/m3NIOSH: TWA 1 mg/m3 |
| Maximum wavelength(λmax) | ['λ: 260 nm Amax: ≤0.020', , 'λ: 280 nm Amax: ≤0.015'] |
| Merck | 14,8590 |
| PH | 9.0-10.5 (25℃, 0.1M in H2O) |
| Storage Condition | Store at +5°C to +30°C. |
| Stability | Stable. Incompatible with powdered metals. |
| Sensitive | Hygroscopic |
| Refractive Index | 1.501 |
| MDL | MFCD00081185 |
| Physical and Chemical Properties | White crystals or vitreous. A- orthorhombic crystal, relative density 2.28, melting point 742.5 ℃. B- orthorhombic crystal, relative density 2.75, melting point 664 ℃. Strong hygroscopicity. Soluble in water, slowly dissolved in methanol, can form a concentration of 13% ~ 16% of the solution. |
| Use | Used as an analytical reagent, but also for borax ball test |
borax(anhydrous) - Risk and Safety
| Risk Codes | R62 - Possible risk of impaired fertility R63 - Possible risk of harm to the unborn child R36/38 - Irritating to eyes and skin. R36/37/38 - Irritating to eyes, respiratory system and skin. R61 - May cause harm to the unborn child R60 - May impair fertility |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S24/25 - Avoid contact with skin and eyes. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S23 - Do not breathe vapour. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S53 - Avoid exposure - obtain special instructions before use. |
| UN IDs | UN 1760 8/PG 2 |
| WGK Germany | 1 |
| RTECS | ED4588000 |
| FLUKA BRAND F CODES | 34 |
| TSCA | Yes |
| HS Code | 28401100 |
borax(anhydrous) - Reference
| Reference Show more | 1. Chen Liang, Zhang Wei, Chen Yuantao, et al. Optimization of Foam Separation of Lycium barbarum Acidic Polysaccharides by Response Surface Methodology [J]. Research and Development 2014 of Natural Products (6). 2. Zhang Ningying, Gao Haiyan, Chen Hangjun. Effects of Ozone Treatment on Storage Quality and Antioxidant Enzyme Activities of Blueberries [J]. Chinese Journal of Food Science, 2017, 17(008):170-176. 3. [IF = 7.514] Jing-Nan Ren et al."Extraction of orange pectin based on the interaction between sodium caseinate and pectin." Food Chem. 2019 Jun;283:265 4. [IF = 4.759] Feng Huo et al."Enhanced light-emitting induced fluorescence detection system with capillary electrophoresis." J Chromatogr A. 2020 May;1619:460935 |
borax(anhydrous) - Nature
Open Data Verified Data
white crystals or vitreous. a orthorhombic crystal, relative density 2. 28, melting point 742.5 ℃. B orthorhombic crystal, relative density 2. 75. Melting point 664 ℃. Strong hygroscopicity. Soluble in water, slowly dissolved in methanol, can form a concentration of 13% ~ 16% of the solution.
Last Update：2025-06-10 22:55:16
borax(anhydrous) - Preparation Method
Open Data Verified Data
melting method industrial borax is put into a melting furnace, and melt dehydration is carried out under normal pressure. The dehydration temperature control part flows out, and is cooled in a stainless steel tank, then the roller crusher is finely crushed and screened to the required fineness to obtain the finished anhydrous borax product.
Last Update：2022-01-01 10:58:37
borax(anhydrous) - Application
Open Data Verified Data
used in the manufacture of high quality glass, enamel powder, flux, non-ferrous metals and alloys flux.
Last Update：2025-08-19 16:24:40
borax(anhydrous) - Safety
Open Data Verified Data
packed in a multi-layer paper bag lined with a polyethylene plastic film barrier. 25kg net weight per bag. Storage and transport should pay attention to strict moisture. See sodium tetraborate decahydrate for others.
Last Update：2025-06-10 22:55:16
borax(anhydrous) - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | see sodium tetraborate decahydrate. |
| use | used to make high-quality glass, enamel, flux, flux for non-ferrous metals and alloys, etc. used to extract boron and boron compounds used as analytical reagent, also used in borax ball test for medicine, metallurgy, tanning, ceramics, textile and food preservation agent. |
| production method | melting method puts industrial borax into a melting furnace, melts and dehydrates under normal pressure, and the dehydration temperature is controlled above 750 ℃. The molten borax flows out from the bottom of the melting furnace and is cooled in the stainless steel tank. After being roughly crushed by a jaw crusher, it is finely crushed by a roller crusher and screened to the required fineness to produce anhydrous borax products. Its NaB4O7 · 10H2O [heating] → Na2B4O7 10H2O ↑ |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-19 11:12:30
Supplier List
Featured ProductsSpot supply
Product Name: Anhydrous Borax Request for quotationCAS: 1330-43-4
Tel: +86-13776910623
Email: r@reformchem.com
Mobile: +86-13776910623
QQ: 3785839865
Wechat: chemical6666
Featured ProductsSpot supply
Product Name: Sodium tetraborate Visit Supplier Webpage Request for quotationCAS: 1330-43-4
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Spot supply
Product Name: Anhydrous Borax Request for quotationCAS: 1330-43-4
Tel: 021-60556179
Email: 18721521379@163.com
Mobile: +86-18721521379
Wechat: 18721521379
Product Name: Anhydrous Borax Request for quotation
CAS: 1330-43-4
Tel: 0513-66814854
Email: pules.cn@gmail.com
Mobile: +86-17551318830
CAS: 1330-43-4
Tel: 0513-66814854
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Spot supply
Product Name: Anhydrous Borax Request for quotationCAS: 1330-43-4
Tel: +86-17505207175
Email: 3787852685@qq.com
Mobile: +86-17505207175
QQ: 3787852685
Wechat: chemical6666
Spot supply
Product Name: Sodiumtetraborate Request for quotationCAS: 1330-43-4
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Disodium tetraborate Visit Supplier Webpage Request for quotationCAS: 1330-43-4
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Spot supply
Product Name: Sodium tetraborateanhydrous Visit Supplier Webpage Request for quotationCAS: 1330-43-4
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Product Name: Anhydrous Borax Request for quotation
CAS: 1330-43-4
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 1330-43-4
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Spot supply
Product Name: Sodium tetraborate Visit Supplier Webpage Request for quotationCAS: 1330-43-4
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Featured ProductsSpot supply
Product Name: Anhydrous Borax Request for quotationCAS: 1330-43-4
Tel: +86-13776910623
Email: r@reformchem.com
Mobile: +86-13776910623
QQ: 3785839865
Wechat: chemical6666
Featured ProductsSpot supply
Product Name: Sodium tetraborate Visit Supplier Webpage Request for quotationCAS: 1330-43-4
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Spot supply
Product Name: Anhydrous Borax Request for quotationCAS: 1330-43-4
Tel: 021-60556179
Email: 18721521379@163.com
Mobile: +86-18721521379
Wechat: 18721521379
Product Name: Anhydrous Borax Request for quotation
CAS: 1330-43-4
Tel: 0513-66814854
Email: pules.cn@gmail.com
Mobile: +86-17551318830
CAS: 1330-43-4
Tel: 0513-66814854
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Spot supply
Product Name: Anhydrous Borax Request for quotationCAS: 1330-43-4
Tel: +86-17505207175
Email: 3787852685@qq.com
Mobile: +86-17505207175
QQ: 3787852685
Wechat: chemical6666
Spot supply
Product Name: Sodiumtetraborate Request for quotationCAS: 1330-43-4
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Disodium tetraborate Visit Supplier Webpage Request for quotationCAS: 1330-43-4
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Spot supply
Product Name: Sodium tetraborateanhydrous Visit Supplier Webpage Request for quotationCAS: 1330-43-4
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Product Name: Anhydrous Borax Request for quotation
CAS: 1330-43-4
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 1330-43-4
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Spot supply
Product Name: Sodium tetraborate Visit Supplier Webpage Request for quotationCAS: 1330-43-4
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
View History
borax(anhydrous)
Monoglyme
磷
Ranolazine
BUTANE-2-CARBOXYLIC ACID
Armostat 400
C.I. Acid Blue 158-14880
1007-16-5
Clopidogrel sulfate
Trichloro(phenyl)germane
Monoglyme
磷
Ranolazine
BUTANE-2-CARBOXYLIC ACID
Armostat 400
C.I. Acid Blue 158-14880
1007-16-5
Clopidogrel sulfate
Trichloro(phenyl)germane