石材常见的锈斑成因，一般可以分为两种：一种锈斑的成因是来自石材本身所含的铁元素；其二是锈斑是外部原因，例如残留的的钢砂或施工时的铁器，装潢的金属器件等等。那草酸直接清洗石材锈斑有什么后果？氢氧化钾厂家为您讲解。

The common causes of rust spots on stone can be generally divided into two types: one is caused by the iron element contained in the stone itself; The second is that the rust is caused by external factors, such as residual steel sand or ironware during construction, decorative metal parts, etc. What are the consequences of directly cleaning stone rust with oxalic acid? The potassium hydroxide manufacturer will explain it to you.

一、酸并不能洗掉石材的所有污染。因为，酸能分解掉的污染，基本上属于碱性污染，对于色素等酸性污染，用酸洗就不科学了。用碱对碱性污染同样无效。

1、 Acid can not wash away all the pollution of stone. Because the pollution that can be decomposed by acid basically belongs to alkaline pollution. For acid pollution such as pigment, pickling is unscientific. Alkali is also ineffective against alkaline pollution.

二、破坏石材结构。大理石的主要成分是碳酸盐，即便是性质稳定的硅酸盐花岗石也含有碳酸钙等易分解成分。碳酸盐成分遇酸，会被分解掉（化学攻势，无法抵挡）。主要成分被分解了，石材表面结构自然会被破坏掉。长此以往，石材失光、粉化等病变是迟早的事。

2、 Damage the stone structure. The main component of marble is carbonate. Even silicate granite with stable properties also contains calcium carbonate and other decomposable components. The carbonate component will be decomposed when it meets with acid (chemical attack cannot be resisted). If the main components are decomposed, the surface structure of the stone will be destroyed naturally. In the long run, it will be a matter of time before the stone loses light and becomes powdered.

三、石材失光。用酸洗石材，尤其是大理石，常见的后果就是失光。这和石材表面钙质成分被分解有关。

3、 The stone loses its luster. The common consequence of pickling stone, especially marble, is loss of light. This is related to the decomposition of calcium components on the stone surface.

四、石材变黄。这种黄变，一旦发生，可以说是大面积的，尤其是人造石。因为人造石主要是矿粉、树脂等压制而成的，树脂在酸的作用下会加速老化，变黄。而石材结晶抛光的结晶层中，也含有一定的树脂。

4、 The stone turns yellow. Once this yellowing occurs, it can be said to be a large area, especially artificial stone. Because artificial stone is mainly pressed by mineral powder and resin, the resin will accelerate aging and turn yellow under the action of acid. The crystal layer of stone crystal polishing also contains a certain amount of resin.

五、诱发各种病变。酸性溶液渗入石材内部，会诱发各种病变。常见的就是锈黄。铁元素在酸性条件下易被氧化成铁锈。质地较软或碳酸盐含量高的石材，在酸的作用下，会生成麻坑，即被酸刻蚀。

5、 Induce various diseases. The acid solution infiltrates into the stone, which will induce various diseases. Common is rust yellow. Iron is easily oxidized to rust under acidic conditions. Stones with soft texture or high carbonate content will generate pits under the action of acid, that is, they will be etched by acid.

总之草酸可用来除锈，不过使用时要小心，草酸对不锈钢有较强的腐蚀性。浓度高的草酸也容易腐蚀手，皮肤接触草酸后，应及时用水清洗。更多注意事项就来我们网站http://www.jinhao360.com咨询了解吧。

In short, oxalic acid can be used to remove rust, but be careful when using it. Oxalic acid has strong corrosiveness to stainless steel. Oxalic acid with high concentration is also easy to corrode hands. After skin contact with oxalic acid, it should be washed with water in time. For more information, please visit our website http://www.jinhao360.com Consult and understand.