Thursday, 18 August 2011

Sodium Bisulphate - Sodium Hydrogen Sulphate - NaHSO4 - 200 g

Chemical formula: NaHSO4 (anhydrous)

Synonyms: sodium hydrogen sulphate, acid sodium sulphate

Amount: 200 g

Appearance and odour: small white crystals without appreciable odour.

Grade: technical

Packaging: professional wide necked, white HDPE bottle with blue conical seal cap and tamper ring. Labelled. Bottle and cap are UN approved and reusable.

Description and uses: sometimes referred to as 'the poor man's concentrated sulphuric acid’, sodium bisulphate can be used to fuse with materials (minerals, ores, oxides...) to digest them (for analysis or extraction), instead of the more hazardous and generally more expensive concentrated sulphuric acid. The higher melting point (315 Celsius) allows reaching higher temperatures of fusion than mere digestion with sulphuric acid alone. Also when added to concentrated sulphuric acid it increases the latter’s boiling point, thus enabling to reach higher temperatures during difficult digestions of inorganic materials.

Prolonged heating at boiling point causes dehydration with formation of sodium pyrosulphate (Na2S2O7), a precursor to sulphur trioxide.

In aqueous solution it behaves like a medium-strong acid and will easily dissolve the more reactive of metals. A solution of 120 g/L (1 M) has a pH of less than 1. The bisulphate anion has a pKa of 1.99.

Industrially it finds use as ‘pH down’ to decrease the pH of water in a variety of applications.

Dispatch: depending on time of receipt of your order, your item will be dispatched either same day or next day at the latest.

Feedback & Complaints: not happy about something? Let us know first before you leave any feedback and we’ll bend over backwards to overcome the problem. Positive feedback always reciprocated.

CAS: 7681-38-1

This blog is no longer ecommerce enabled. To shop with us please click on the banner below!

No comments:

Post a Comment

Note: only a member of this blog may post a comment.