众所周知,烧碱是一种基本的化工原料,应用非常广泛,如纸张、合成洗衣皂、粘胶纤维、人造丝和棉织物等,那么在使用中如何溶解烧碱呢?
As we all know, caustic soda is a basic chemical raw material, which is widely used, such as paper, synthetic laundry soap, viscose fiber, rayon and cotton fabric, etc. How to dissolve caustic soda in use?
产生的碱性片碱片制造商基本上是白色半透明片状固体,但也会有如此的片碱生产过程污染或碱溶液和设备有一个轻微的反应会产生一些红色,蓝绿色或灰色混合颜色。所以选购时一定要选择颜色纯正的白色,板材厚度薄,面积小的板碱。这种药片使用时更容易溶解。
The alkaline flake alkali produced by the manufacturer is basically a white translucent flake solid, but there will also be such flake alkali production process pollution or a slight reaction between the alkali solution and the equipment will produce some red, blue-green or gray mixed colors. Therefore, we must choose pure white color, thin plate thickness, small area of plate alkali. The tablets are easier to dissolve when used.
溶解时,搅拌并同时焯水。在水中放置太久或一次全部倒入水中会导致结块和缓慢的溶解。溶解没有冷却,待完成后一个溶解再酷所以我们可以得到更高的碱浓度,此外,高碱溶解度较高的温度场,碱液浓度较高,但小心不要把太多的碱,因为一旦饱和溶液的溶解度,然后把一块碱不会溶解,将凝聚的效果。
When dissolved, stir and blanch. Placing in water too long or pouring it all in at one time can cause caking and slow dissolution. The dissolution is not cooled. After the completion of a dissolution, we can get a higher alkali concentration. In addition, the temperature field with a higher alkali solubility has a higher alkali concentration, but be careful not to put too much alkali, because once the solubility of the saturated solution is reached, then a piece of alkali will not be dissolved, and the effect of agglomeration will be achieved.
腐蚀性极强的鳞片,其溶液或粉尘溅在皮肤上,特别是溅在粘膜上,可产生软痂,并可穿透深层组织。烧伤留下了疤痕。溅入眼睛,不仅会损伤角膜,还会使眼睛深层组织受损。如不慎溅到皮肤上,应立即用清水冲洗10min;如有溅出,应立即用清水或生理盐水冲洗15分钟,然后加入2%的奴佛卡因。严重的病例很快被送往医院治疗。空气中烧碱粉尘的最大允许浓度为0.5mg/m3。操作人员必须穿戴工作服、面罩、防护眼镜、橡胶手套、橡胶围裙、胶靴等劳动防护用品。在皮肤上涂上一种中性的疏水性软膏。车间应该通风良好。
The scales with strong corrosiveness can produce soft scabs and penetrate deep tissues when the solution or dust is splashed on the skin, especially on the mucous membrane. The burn left a scar. Splashing into the eyes will not only damage the cornea, but also damage the deep tissues of the eyes. In case of splashing on the skin, wash it with clear water for 10min immediately; in case of splashing, wash it with clear water or normal saline for 15min immediately, and then add 2% novocaine. Serious cases were quickly taken to hospital. The maximum allowable concentration of caustic soda dust in the air is 0.5mg/m3. Operators must wear work clothes, masks, protective glasses, rubber gloves, rubber apron, rubber boots and other labor protection articles. Apply a neutral hydrophobic ointment to the skin. The workshop should be well ventilated.