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Colemanite (B-11%)

Colemanite (B-11%)

CAS Number: 1318-33-8

Molecular Formula: Ca2B6O11·5H2O

About Colemanite (B-11%)

Hydrated calcium borate (CAS 1318-33-8), widely utilized in the production of high-performance borosilicate glass and continuous-filament fiberglass, is currently seeing a surge in demand as a bulk chemical supplier priority due to its critical role in enhancing thermal shock resistance and chemical durability in US-ba...

Colemanite (B-11%) Specifications

CAS Number

1318-33-8

Molecular Formula

Ca2B6O11·5H2O

Molecular Weight

411.09 g/mol

IUPAC Name

dicalcium hexaborate pentahydrate

HSN No

25280030

CAS Number

1318-33-8

Molecular Formula

Ca2B6O11·5H2O

Molecular Weight

411.09 g/mol

IUPAC Name

dicalcium hexaborate pentahydrate

HSN No

25280030

Molecular Weight

411.09 g/mol

Precautionary Statement Codes

P261, P264, P270, P280, P301+P317, P302+P352, P305+P351+P338, P321, P330, P332+P317, P337+P317, P362+P364, P403+P235, and P501

Hazard Classes and Categories

Flam. Liq. 4 Acute Tox. 4 (Oral)

Glassmaking Ingredient

A primary source of boron used in the production of fiberglass and borosilicate glasses to improve thermal resistance, chemical durability, and lower fusing temperatures

Ceramic Glaze Component

A versatile fluxing agent and opacifier employed in ceramic and enamel glaze formulations to enhance surface smoothness, reduce thermal expansion, and provide acid resistance

Metallurgical Flux

A functional mineral used in steelmaking and gold refining to lower the melting temperature of slag, improve metal-slag reactions, and enhance the mechanical properties of alloys through boron enrichment

Flame Retardant Filler

An effective halogen-free synergist and heat sink used in wood plastic composites, polymers, and bituminous roofing to reduce heat release rates and promote char formation during combustion

Agricultural Micronutrient

A low-solubility boron source used in fertilizers for acidic soils to provide a controlled release of boron essential for plant growth

Industrial Intermediate

A chemical precursor used in the manufacture of soaps, detergents, and disinfectants, and as a raw material for the production of boric acid.

Colemanite (B-11%) 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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