2. Continue to add 400g water to the digested lime milk. After the reaction is complete, the quality of quicklime can be judged by detecting the proportion of undigested solid residues. The less residues, the better the quality of lime. Generally, the residue less than 10% is good lime.
In addition to the price, you should also check the color, packaging and stability of lime when buying lime. At the same time, you should pay attention to whether it is produced by a regular manufacturer. Generally, the products of regular manufacturers will have factory name, address, brand and trademark. It's best not to buy things that are not marked.
Extended data:
Precautions:
1. The shorter the operation time, the better. Put it in a suitable place in the packaging container to seal and absorb moisture.
2, stored in a dry warehouse, moistureproof, avoid contact with acids.
3. Avoid getting wet during transportation, and handle with care to prevent the package from being damaged and affect the product quality.
4. No eating. In case of entrance, rinse your mouth with water and see a doctor immediately. Remember not to drink water, quicklime is an alkaline oxide, which will corrode in water. )
Baidu encyclopedia-ash tree