compound materials Rakousko

...:","The compound contains trace amount of iron and lead and has a PH value of about 3.5. It can absorb water from the atmosphere; therefore, it should always be stored away from measures under a closed container. It should also be kept away from materials that may oxidize and lead to a darker color.":"Tato sloučenina obsahuje stopové množství železa a olova a má pH hodnotu přibližně 3,5. Může...