碳酸鎂 MAGNESIUM CARBONATE

一、化學(xué)名：碳酸鎂，堿式碳酸鎂

二、分子式：xMgCO3·yMg(OH) 2·nH2O

三、分子量：----

四、CAS: 39409-82-0

五、性狀：常溫時(shí)為三水鹽。輕質(zhì)為白色易碎塊狀或松散的白色粉末。無(wú)臭。相對(duì)密度2.2。熔點(diǎn)350℃。在空氣中穩(wěn)定。加熱至700℃發(fā)生二氧化碳，生成氧化鎂。幾乎不溶于水，但在水中引起輕微的堿性反應(yīng)。不溶于乙醇，可被烯酸溶解并發(fā)泡。

六、用途：堿性劑；干燥劑；護(hù)色劑；抗結(jié)劑；載體；膨松劑；酸度調(diào)節(jié)劑。

七、包裝：凈重25kg，復(fù)合牛皮紙袋內(nèi)襯聚氯乙烯袋；

八、儲(chǔ)運(yùn)與運(yùn)輸：應(yīng)貯在陰涼、干燥、通風(fēng)清潔的庫(kù)房中，輕裝輕放，防止受潮、受熱，運(yùn)輸過(guò)程中防止雨淋受潮，應(yīng)與有毒物品隔離堆放。

1、Chemical Name: MAGNESIUM CARBONATE

2、Molecular Formula: xMgCO3·yMg(OH) 2·nH2O

3、Molecular Weight: ---

4、CAS: 39409-82-0

5、Character: In normal temperature, it’s with three hydrates. Light one is white, easily fragile or loose white powder. Odorless. Relative density is 2.2. Melting point is 350℃. It’s stable in the air. When heated to 700℃, it will become magnesium oxide. It’s hardly soluble in water, but it’ll bring a slight alkaline reaction. It can not be soluble in ethanol but it could be soluble in olefine acid with sparkling.

6、Usage: It’s used as drier, color ficatives, anticaking agent, carrier, swelling agent, acidity regulator.

7、Packing: It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.

8、Storage and Transport: It should be stored in a dark, dry and ventilative warehouse, kept away from water and moisture; unloaded with care to avoid damage. Furthermore, it must be stored separately from poisonous substances.