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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
MDL Number:
MOL File:
Mol file
Last updated:2024-08-12 15:55:19

Tincalconite (B4Na2O7.5H2O) Properties

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

Global( 16)Suppliers
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HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
+86-15350851019 +86-15383190639 admin@86-ss.com China 1000 58
Suzhou ARTK Medchem Co., Ltd.
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Wuhan Ji Ye Sheng Chemical Co., Ltd. 027-13545242311 13545242311 2471076463@qq.com China 991 58
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Wuhan Jiyesheng Chemical Co. , Ltd. 15927657172 3698796631@qq.com China 1758 58
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View Lastest Price from Tincalconite (B4Na2O7.5H2O) manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Tincalconite (B4Na2O7.5H2O) pictures 2024-10-18 Tincalconite (B4Na2O7.5H2O)
12045-88-4
US $1000.00-400.00 / ton 1ton 99% 5000 HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Tincalconite (B4Na2O7.5H2O) TINCALCONITE) sodium tetraborate pealtahydrate 12045-88-4 B4NA2O75H2O