Y-Vinegar acid test reagent

Product introduction

Detection principle

The main component of vinegar is acetic acid, containing a small amount of other organic acids. This reagent use the reagent and total acid reaction appears red to brown red principle, using the national standard method, and according to the consumption of the determination of drop count in a sample of the total acid content is consist with vinegar label total acid content. It is suitable for total acid in vinegar rapid detection on-site.

Specification: 25 times.

Storage: normal temperature, avoid from sunlight.

Packing: 1. Vinegar total acid solution 2 bottles. 2. Vinegar acid color-developing reagent 1 bottle.

Period of validity: 12 months.

Usage

Take 1.0mL samples to 10 mL colorimetric tube, add water to the 10.0mL scale, after cover lid to mixing, and then take 1.0mL into another colorimetric tube or test tube, and add 4 of total acid in vinegar color-developing reagent, and then use the vinegar liquid titration determination of total acids to titrate, to shake a few for drop each solution, until the solution turns purple (dark vinegar into brownish red), and then stop titration determination of total acids, recording vinegar liquid droplet number V, when drop number is greater than 12 drops, then can be qualified products.

Results calculation

Total acid (g/ 100 ml) = drops of test solution (V) * 0.3 (g / 100 ml)

Announcement

1. During Titration should pay attention to the bottle orthostatic so as to reduce the error.