大理石石材特性，在使用過程當中很容易產生病變，非常常見的一種就是石材銹斑。很多人會想到的處理方式就是使用草酸清洗，用草酸直接清洗石材銹斑有什么后果呢？下面氫氧化鉀廠家為您解答。

Marble stone features are easy to produce pathological changes in the process of use, and a very common one is stone rust. The treatment that many people will think of is to use oxalic acid for cleaning. What are the consequences of directly cleaning stone rust stains with oxalic acid? The potassium hydroxide manufacturer will answer the question for you.

一、酸并不能洗掉石材的所有污染。因為，酸能分解掉的污染，基本上屬于堿性污染，對于色素等酸性污染，用酸洗就不科學了。用堿對堿性污染同樣無效。

1、 Acid can not wash away all the pollution of stone. Because the pollution that can be decomposed by acid is basically alkaline pollution. For acid pollution such as pigment, pickling is not scientific. Alkali has no effect on alkaline pollution.

二、破壞石材結構。大理石的主要成分是碳酸鹽，即便是性質穩定的硅酸鹽花崗石也含有碳酸鈣等易分解成分。碳酸鹽成分遇酸，會被分解掉（化學攻勢，無法抵擋）。主要成分被分解了，石材表面結構自然會被破壞掉。長此以往，石材失光、粉化等病變是遲早的事。

2、 Destroy the stone structure. The main component of marble is carbonate. Even the stable silicate granite also contains calcium carbonate and other easily decomposed components. Carbonate will be decomposed in case of acid (chemical attack, unable to resist). The main components are decomposed, and the surface structure of stone will be destroyed naturally. In the long run, it will be a matter of time before the stone loses its luster and becomes powdery.

三、石材失光。用酸洗石材，尤其是大理石，常見的后果就是失光。這和石材表面鈣質成分被分解有關。

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

四、石材變黃。這種黃變，一旦發生，可以說是大面積的，尤其是人造石。因為人造石主要是礦粉、樹脂等壓制而成的，樹脂在酸的作用下會加速老化，變黃。而石材結晶拋光的結晶層中，也含有一定的樹脂。

4、 The stone turns yellow. This yellowing, once occurred, can be said to be a large area, especially man-made stone. Because artificial stone is mainly made by pressing 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、誘發各種病變。酸性溶液滲入石材內部，會誘發各種病變。常見的就是銹黃。鐵元素在酸性條件下易被氧化成鐵銹。質地較軟或碳酸鹽含量高的石材，在酸的作用下，會生成麻坑，即被酸刻蝕。

5、 Induce various pathological changes. The acid solution infiltrates into the interior of the stone, which will induce various pathological changes. Rust yellow is common. Iron is easy to be oxidized into rust under acidic conditions. Stone with soft texture or high carbonate content will form pits under the action of acid, that is, it will be etched by acid.

草酸是含酸性溶劑，不僅無法干凈銹斑，還會越洗銹斑范圍越大，而且對石材的損傷是非常大的。所以要避免使用草酸等含酸堿性溶劑清洗。更多相關產品內容就來我們網站http://www.shrisa.cn咨詢看看吧！

Oxalic acid is an acidic solvent, which not only cannot remove the rust stains, but also can expand the scope of the rust stains, and the damage to the stone is very large. Therefore, it is necessary to avoid the use of oxalic acid and other acidic and alkaline solvents for cleaning. More relevant product content will come to our website http://www.shrisa.cn Consult!