Borax Crystal

Synonym(s)

: Sodium tetraborate, borax anhydrous, borax glass, borax fused

Mol. Formula

: Na2B4O7

EC / List no.

: 215-540-4

CAS no.

: 1330-43-4

Molecular weight

: 201,22

It is a compound consisting of tetraboric acid and sodium components. Sodium tetraborate can be used as a cocatalyst for the oxidation of alcohols to their corresponding carbonyl compounds in greener non-chlorine solvents in the presence of NaOCl. It is also used as a structure-directing agent and a catalyst in the preparation of carbon aerogels using glucose as the carbon precursor.

Application

» Widely used in agricultural products (non-pesticides), building/construction materials, cleaning, upholstery care products, developer for X-ray chemicals, fuels and related products, furniture, laboratory equipment, laundry and dishware.
» Used in lubricants, greases, metal products, paints and coatings.
» It is used in paper products, personal care products, pet care products, water treatment products, plastic and rubber products.

Product Specifications

Physical and Chemical Properties
» Borax has a white crystalline appearance.
» It is odorless.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	741
Boiling point	°C	1575	Decomposes
Solubility	g/L	49.74	20 °C, soluble with water
Density	g/ cm3	2,367	25 °C
pH		9.2	25 g/L, 20 °C
Vapor pressure	hPa	7.3	12000 °C
Autoignition temperature		Not flammable