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Potassium Pentaborate

Potassium Pentaborate

CAS Number: 12229-13-9

Molecular Formula: KB5O8

About Potassium Pentaborate

Potassium Pentaborate (CAS 12229-13-9) is increasingly critical in the United States as a specialized component for high purity fine chemicals, particularly as a fluoride-free alternative in metal refining and brazing fluxes to meet tightening environmental regulations regarding fluorine emissions. Boron potassium oxid...

Potassium Pentaborate Specifications

CAS Number
12229-13-9
Molecular Formula
KB5O8
Molecular Weight
293.21 g/mol
IUPAC Name
dipotassium; [bis(oxoboranyloxy)boranyloxy-oxoboranyloxyboranyl]oxy-[[oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyboranyl]oxyborinate; octahydrate
Canonical SMILES
B(=O)OB([O-])OB(OB=O)OB([O-])OB(OB=O)OB(OB=O)OB([O-])OB([O-])OB1OB(OB(O1)OB=O)OB=O.O.O.O.O.O.O.O.O.[K+].[K+]
InChI Key
YPXZEFMEMBTGMS-UHFFFAOYSA-N
Molecular Weight
293.21 g/mol

Metal Refining and Metallurgy

An excellent choice for copper refining, copper alloys, and precious metals

Welding, Soldering, and Brazing Flux

A borate-containing flux to dissolve oxide impurities on metal surfaces and provide a protective barrier film

Gear Lubrication

An additive for industrial and automotive gear lubricants to improve load-carrying, anti-corrosion, and anti-wear properties

Oil Well Drilling

A retarder for slow-setting cements to delay the set during deep well drilling

Photographic Development

A source of borate anion for creating light-sensitive compositions in diazotype developers

Flame Retardant

A fire resistance enhancer in construction materials like drywall and insulation

Concrete Additive

A durability enhancer for concrete mixtures to provide resistance to environmental degradation

Wood and Paper Treatment

A treatment for matches to control burn rate and stop afterglow

Potassium Pentaborate FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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