CHEMICAL CORROSION RESISTANCE

화학 부식 저항성

산에 대한 저항성

에나멜은 비교적 높은 온도까지의 모든 농도의 산에 대한 저항성이 강하다.
H2SO4 30% : 128°C abrasion 0.1mm/year
H2SO4 60% : 180°C abrasion 0.1mm/year

알칼리에 대한 저항성

알칼리에 대한 저항성은 산에 대한 저항성보다 매우 낮다.
NaOH 1N : Max. Temp. 55°C

증류수에 대한 저항성

100°C 미만에서는 반응기에 영향을 주지 않는다.

데이터

The iso-corrosion curves reflect the ratio of product or acid volume to the enamelled surface in large stirring containers and yield experimental data according to DIN EN 14483-2 and 5.

Using the silica effect, Pfaudler World Wide Glass WWG can take much more chemical stress than the usual limits without any risk. The diagrams thus also show typical concentrations with added silicon dioxide as corrosion protection.

Dark-blue curve:
chemical effect of acids
on Pfaudler WWG does
not exeed 0.1 mm/a
thickness loss.
Light-blue curve:
represents the 0.2
mm/a curve and shows
the resistance capacity
of Pfaudler WWG with
regard to acreases in
temperature.
White dots:
indicate the increasing
enamel durability with
regard to non-inhibited acids.

Completely resistant VL≤ 0.1 mm/a

Limited resistance when subject to brief chemical stress VL= 0.1 … 0.2 mm/a

The iso-corrosion diagrams illustrate factors relevant to the corrosion rate. These include, for example, the volume/surface ratio, the base concentration and the temperature. All information in the diagrams refer to a technically pure base. The curves reflect experimental data according to DIN EN 14483-2 and 5.

The two upper diagrams are predominantly applicable to aqueous solutions containing alkali-hydroxide. The application temperature is restricted to 50˚C at higher concentrations.

Completely resistant VL≤ 0.1 mm/a

Limited resistance when subject to brief chemical stress VL= 0.1 … 0.2 mm/a

글라스 라이닝 기기를 사용하는 부식 조건은 부식율이 0.1mm/year 이하이지만, 0.2mm/year 까지는 사용이 가능합니다.