I, talc and lime powder have different composition.

1, talcum powder main ingredient is magnesium silicate.

2, the main component of lime powder is calcium carbonate.

2, talc and lime powder have different characteristics.

1, talcum powder has lubricity, fire resistance, acid resistance, insulation, softness, gloss, adsorption is relatively strong and other relatively good chemical properties.

2, and lime powder has chemical resistance, acid resistance, resistance to a variety of gases, the two kinds of stone powder in the chemical properties are very different.

Three, talcum powder and lime powder have different uses.

1, talcum powder use: in the cosmetics industry, can be used as toner, beauty powder, emollient powder and other additives; pharmaceutical food industry, can be used as sugar coating, prickly heat powder, and in the medicine, food additives and isolation agents and other roles; paint industry used to make a variety of protective paint or industrial coatings, etc.; talcum powder micro-powder can be used to make high-grade paint, plastics, cable rubber, Cosmetics, coatings for coated paper, textile lubricants, etc. In addition to these talcum powder is also operated in ceramics, waterproof materials and other industries.

2, the use of lime powder: the most important application of lime powder is the construction industry, the main purpose is to use to produce cement, in this industry in our country every year to consume a large number of limestone powder, and now many thermal power plants desulfurization desulfurization agent is also made of limestone powder, the production of glass can not be separated from the lime powder, in addition to these mainstream industries, lime powder is also widely used in the steelmaking, feed and other industries.

Expanded Information:

I. Talcum powder is classified according to physical and chemical properties: excellent, first-class products, qualified products three quality levels.

Second, according to its fineness and sieve passing rate, the finely ground talcum powder is divided into the following two specifications:

1. fineness 45μm, expressed as a percentage of the weight of the product through the sieve;

2. fineness 75μm, expressed as a percentage of the weight of the product through the sieve.

I. Lime quality grade classification:

1. Lime is divided into quicklime and slaked lime powder according to varieties.

2, lime according to the chemical composition of magnesium oxide content is divided into calcium lime, magnesium lime. Note: silicon, aluminum, iron oxide content and more than 5% of quicklime, effective calcium plus magnesium oxide content indicators, first-class ≥ 75%, second-class ≥ 70%, third-class ≥ 60%.

Reference:

Baidu Encyclopedia-Lime Powder