Special heavy calcium for paper - Names and Identifiers
Special heavy calcium for paper - Physico-chemical Properties
Special heavy calcium for paper - Introduction
Calcium for heavy papermaking is a commonly used calcium-based additive, which has a wide range of applications in the paper industry.
Nature:
calcium for heavy papermaking is white or yellowish crystalline powder, chemically calcium hydroxide (Ca(OH)2). It has a higher density, lower solubility, and can be slowly dissolved in water. It is alkaline and can be neutralized with acidic substances. Calcium for heavy papermaking also has certain hygroscopicity and bacteriostasis.
Use:
1. As a papermaking additive, heavy papermaking special calcium can be used for slurry treatment under neutral or alkaline conditions, which helps to improve the strength, smoothness and gloss of paper.
2. Heavy papermaking special calcium can also be used in the metallurgical industry, such as squeeze casting, solvent furnace dust removal.
Preparation Method:
The preparation method of calcium for heavy papermaking mainly includes calcination and hydration of limestone. Limestone is calcined at high temperature to obtain quicklime, and then the quicklime reacts with water to generate calcium hydroxide, which is calcium for heavy papermaking.
Safety Information:
1. Heavy papermaking special calcium belongs to a kind of alkaline substances, contact may cause irritation to the skin and eyes, should pay attention to protective measures.
2. Use should avoid inhaling the dust floating in the air, should wear protective masks and gloves.
3. If inhaled or ingested by mistake, seek medical attention immediately.
4. During storage, contact with acidic substances should be avoided to avoid harmful gases or violent reactions.
5. Storage should be away from fire and high temperature environment, stored in a ventilated and dry place, avoid contact with moisture.
Last Update:2024-04-09 02:00:38