717094

ISO 2997:1974

Phosphoric acid for industrial use -- Determination of sulphate content -- Method by reduction and titrimetry

standard by International Organization for Standardization , 11/01/1974

View all product details

Most Recent

Track It

Language:
    • Available Formats
    • Options
    • Availability
    • Priced From ( in USD )
    • Printed Edition
    • Ships in 1-2 business days
    • $54.00
    • Add to Cart

Customers Who Bought This Also Bought

 

About This Item

 

Full Description

Applicable to products having sulphate contents equal to or more than 0.0005 % (m/m). Analysis by reduction of the sulphate to sulphide by a mixture of hydriodic acid and hypophosphorus acid. Absorption of the hydrogen sulphide evolved in a mixture of acetone and sodium hydroxide solution. Titration with a standard volumetric solution of mercury(II) acetate in the presence of dithizone as indicator. Has also been approved by the IUPAC.

 

Product Details

Published:
11/01/1974
Number of Pages:
3
File Size:
1 file , 300 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus