keep refrigerated and out of reach of small children

It is also a neurotransmitter

protect from direct sunlight

00005% Lead (Pb) Lead (Pb) max

It also has the advantage of a very simple composition

R-R Puffer Ph 4.01 100ml Augen und Sehvermögen keep refrigerated and out ofBuffer Solution pH 4. 01 Technical Data Form: liquid Color: colorless Odor: odorless pH value: 4. 01 (20C) [Range: 4. 005 4. 015]. Density: approx. 1. 02 g cm (20C) Melting point: no data available Boiling point: no data available Auto ignition temperature: not applicable Flash point: not applicable Explosion limits: not applicable Vapor pressure: no data available Solubilityin water: completely soluble Solubility in organic solvents: no data