Tincalconite (B4Na2O7.5H2O)
- CAS No.
- 12045-88-4
- Chemical Name:
- Tincalconite (B4Na2O7.5H2O)
- Synonyms
- TINCALCONITE);Tincalconite (B4Na2O7.5H2O);sodium tetraborate pealtahydrate
- CBNumber:
- CB31215668
- Molecular Formula:
- Na2B4O7·5H2O
- Molecular Weight:
- 291.3
- MOL File:
- Mol file
- Modify Date:
- 2024/12/18 14:07:02
| Density | 1.880 |
|---|---|
| form | hexagonal crystals |
| color | hexagonal, hexane crystals, crystalline |
| Water Solubility | %w of anhydrous in H2O: 16.40 (60°C), 23.38 (80°C), 34.63 (100°C); %w of pentahydrate at 25°C: 16.9% in methanol, 31.1% in ethylene glycol, 10.0% in diethylene glycol [KIR78] |
| EPA Substance Registry System | Tincalconite (B4Na2O7.5H2O) (12045-88-4) |
Tincalconite (B4Na2O7.5H2O) Chemical Properties,Uses,Production
Chemical Properties
free flowing powder(s); trig; specific heat 1.32kJ/(kg ·K); enthalpy of formation ?4784.4MJ/ mol; used as a weed killer, and to control fungus growth on citrus fruit [KIR78]
Physical properties
Hexagonal crystal; density 1.88 g/cm3; decomposes on heating; reversibly converts to an amorphous dihydrate when heated at 88°C at 2 torr; soluble in water (13% at 45°C), soluble in alcohols (17% in methanol and 31% in ethylene glycol by weight).
Occurrence
Borax pentahydrate occurs in nature as mineral tincalconite, formed by dehydration of borax. It has several industrial applications, mostly the same as its decahydrate. The pentahydrate is used in the manufacture of borosilicate glass. It also is used in cleaning agents; ceramic glaze; adhesives; cosmetics; antifreeze; and herbicide formulations. It is added to fertilizers to provide boron as a nutrient to the plants.
Production Methods
Borax pentahydrate is produced from various sodium borate and magnesium borate ores. In the United States, it is produced from dry lake brines, colemanite and tincal. It is commercially produced along with the decahydrate. The production processes are similar to decahydrate (see Borax decahydrate).
Tincalconite (B4Na2O7.5H2O) Preparation Products And Raw materials
Tincalconite (B4Na2O7.5H2O) Suppliers
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| ALLIPO CHEMICALS | +91-8238998187 +91-8238998187 | Gujarat, India | 32 | 58 | Inquiry |
| HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD | +8615350851019 | China | 1001 | 58 | Inquiry |
| Suzhou ARTK Medchem Co., Ltd. | +86-512-68323658 +86-18168183658 | China | 39003 | 58 | Inquiry |
| JYS | 13545274181 | China | 2121 | 58 | Inquiry |
| WUHAN GEEYESCHEM CHEMICAL CO., LTD. | 15927657268 | China | 2088 | 58 | Inquiry |
| Wuhan Ji Ye Sheng Chemical Co., Ltd. | 15387013945 15387013945 | China | 2068 | 58 | Inquiry |
| wuhan geeyeschem chemical | 027-18502765 18502765281 | China | 1941 | 58 | Inquiry |
| Wuhan Jiyesheng Chemical Co., Ltd | 15927120776 15927120776 | China | 2026 | 58 | Inquiry |
| Wuhan Jiyesheng Chemical Co. , Ltd. | 159-27657172 15927657172 | China | 2077 | 58 | Inquiry |
| Wuhan Ji Ye Sheng Chemical Co., Ltd. | 027-13545242311 13545242311 | China | 999 | 58 | Inquiry |