Glycerol 99%

EP, USP (Tested for Endotoxin & Microbes)

CAS #:

56-81-5

Molecular Formula:

C3H8O3

Synonym:

Glycerin, 1,2,3-Propanetriol

Molecular Weight:

92.09 g/mol

Overview

Glycerol is used both in sample preparation and gel formation for polyacrylamide gel electrophoresis. Glycerol (5-10%) increases the density of a sample so that the sample will layer at the bottom of a gel’s sample well. Glycerol is also used to aid in casting gradient gels and as a protein stabilizer and storage buffer component.

Glycerol is odorless, colorless, viscous in nature, and exists as a sweet tasting liquid. It can be derived naturally as well as from petrochemical feedstock. Glycerol has a wide variety of applications, and is one of the most valuable and versatile chemical substances in nature. It can be used as an emollient, solvent, sweetening agent, in pharmaceutical formulations, injections, cosmetics, foodstuffs and toiletries. It is very stable and can be easily stored under normal temperature; also, it is non-irritating and has no adverse impact to the environment.

Characters Unit Specification
Appearance colourless or almost colourless, clear liquid
Assay % 99.0 – 101.0
Identification (A, B, C) complies
Appearance of solution clear and colourless
Specific density g/cm3 min. 1.249
Acidity or alkalinity ml of 0,1 M NaOH max. 0.2
Residue on ignition / Sulphated ash % max. 0.01
Chloride ppm max. 10
Refractive index 1.470 – 1.475
Aldehydes ppm max. 10
Esters ml of 0,1M HCl min 8.0
Water % max. 2.0
Halogenated compounds ppm max. 35
Sugars complies
Sulphate ppm max. 20
Heavy metals ppm max. 5
Total of all impurities % max. 0.5
Total aerobic microbial count cfu/g max. 100
Total yeasts and moulds count cfu/g max. 50
E.coli cfu/g absent in 1g
Pseudomonas aeruginosa cfu/g absent in 1g
Staphylococcus aureus cfu/g absent in 1g
Salmonella cfu/g absent in 25g
Bacterial endotoxine IU/g max. 10

Shelf Life/Retest Date: Glycerol 99% can be kept for at least 1 and half years if stored under recommended conditions.

Storage/Shipping Conditions:

  • Keep container tightly sealed.
  • Protect from humidity and keep away from water.
  • This product is hygroscopic.
  • Protect from frost.

Pack Sizes: 6 Kg

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