偏硼酸钾

Description

Potassium metaborate · CAS 13709-94-9 · BKO2. UNII XZM213L7Q6. Melting Point: 947 °C.

Identification

CAS Registry Number	13709-94-9
PubChem CID	123325
Molecular formula	BKO2
IUPAC name	potassium oxido(oxo)borane
UNII (FDA)	XZM213L7Q6

Computed Descriptors

Molecular Weight	81.91
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	81.9628409
Monoisotopic Mass	81.9628409
Topological Polar Surface Area	40.1
Heavy Atom Count	4
Formal Charge	0
Complexity	13.5

Physical & Chemical Properties

Melting Point	947 °C

Physical description & handling notes

• Liquid
• White solid; [HSDB]
• White hexagonal crystals
• Insoluble in ethanol
• Approximately 2.3 g/cu cm

GHS Hazard Classification

Reported hazard statements	H319 (41.6%), H361 (29.4%), H360

Documented Uses

• Used to maintain viscosity in hydraulic fracturing fluids; [HSDB]
• Petroleum Production and Refining [Category: Industry]
• Both oil base and water base fracturing fluids are being used in the fracturing industry. Water base, which includes alcohol-water mixtures and low strength acids, make up the majority of treating fluids. The common chemicals added to these fluids are polymers for viscosity development, crosslinkers for viscosity enhancement, pH control chemicals, gel breakers for polymer degradation following the treatment, surfactants, clay stabilizers, alcohol, bactericides, fluid loss additives and friction reducer. /Hydraulic
• Hydraulic fracturing uses a specially blended liquid which is pumped into a well under extreme pressure causing cracks in rock formations underground. These cracks in the rock then allow oil and natural gas to flow, increasing resource production. ... Chemical Name: Potassium metaborate; Chemical Purpose: Maintains fluid viscosity as temperature increases; Product Function: Crosslinker.
• Processing aids, specific to petroleum production
• Processing aids not otherwise specified

Synonyms

Potassium metaborate; Boric acid (HBO2), potassium salt; Potassium borate (KBO2); Boric acid (HBO2), potassium salt (1:1); UNII-XZM213L7Q6; Potassium metaborate (KBO2); XZM213L7Q6; HSDB 7988; EINECS 237-262-2; DTXSID3049752; BORON POTASSIUM OXIDE (BKO2); POTASSIUM BORATE (KBO2) [HSDB]; RefChem:175518; DTXCID0029711; 237-262-2; 13709-94-9

Frequently Asked Questions

What are the CAS number and molecular formula of Potassium metaborate?

CAS 13709-94-9; molecular formula BKO2; molecular weight — g/mol.

What other names is Potassium metaborate known by?

Potassium metaborate, Boric acid (HBO2), potassium salt, Potassium borate (KBO2), Boric acid (HBO2), potassium salt (1:1), UNII-XZM213L7Q6, Potassium metaborate (KBO2).

Is Potassium metaborate classified as hazardous?

Hazard statements reported: H319, H361, H360.

What are the key physical properties of Potassium metaborate?

Melting Point: 947 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.