Pingpingjia
Pingpingjia is an adduct of natural fatty alcohols and ethylene oxide. Its chemical composition is the condensate of fatty alcohols and ethylene oxide. It can also be called They are leveling agent O, emulsifier O-25, Pingpingjia O-25, and similar products also have names like X-102.
The appearance of Pingpingjia is a white solid material, which is processed into slices, so the normal state is white flakes. It is usually packed in a 20kg woven bag.
1. Technical indicators
The H L B value of Pingpingjia is 16~17, which is of course theoretical Value, for reference only, color Pt-Co: ≤30, pH value between 5.5~7.0 (1% aqueous solution), cloud point between 91.0℃~96.0℃ (0.5g leveling agent O dissolved in 5% NaCl solution), the calcium soap dispersion force is greater than or equal to 30.0g, and the moisture content is less than or equal to 1.0%.
Pingpingjia O is a nonionic surfactant that is easily soluble in water, ethanol, ethylene glycol, etc., and is resistant to acid, alkali, hard water, heat, and heavy metal salts. It has strong adaptability to the environment, and has strong leveling, retarding, permeability, and diffusibility for various dyes. It has the ability to assist in scouring and can be used with various surfactants and dyes. .
The application and recommended dosage of Pingpingjia in the printing and dyeing industry. Pingpingjia is widely used in various processes of the textile printing and dyeing industry.
2. Application
In the printing and dyeing industry, Pingpingjia is used as direct dye and vat dye. , leveling agent for acid dyes, disperse dyes and cationic dyes, and can also be used as a diffusing agent and stripping agent.
It is used as a diffusing agent to prevent the decomposition products of some Naftal dyes from gathering on the fabric and contaminating the dye.
It is used as a leveling agent for direct dyeing of cotton. Adding about 0.2-0.5 g/L to the solution can achieve good leveling and permeability effects.
Used as a leveling agent when dyeing cotton with vat dyes, the general dosage is 0.02-0.1 g/L,
Leveling agent for elastic nylon yarn dyed with disperse dyes, the general dosage is 1-4%.
Soda
Soda belongs to Soda Transliteration, the chemical formula is Na2CO3. The scientific name is sodium carbonate, and the common name is soda ash, also known as soda ash or soda ash. The one with crystal water is called hydrated sodium carbonate.
Anhydrous sodium carbonate is white powder or fine particles, easily soluble in water, and the aqueous solution is alkaline. It is highly hygroscopic and can absorb moisture in the air and form hard lumps.
Among the three types of soda, sodium carbonate is the most widely used. It is a very important chemical product and an important raw material for glass, soap, textile, papermaking, leather and other industries. It is also used in the metallurgical industry and in water purification. It is also used in the manufacture of other sodium compounds.
Baking Soda
The chemical formula of baking soda is NaHCO3. The scientific name is sodium bicarbonate and the common name is baking soda.
Baking soda is white crystal, soluble in water, and the aqueous solution is weakly alkaline. In hot air, it can slowly decompose and release a part of carbon dioxide; when heated to 270°C, all carbon dioxide will be released.
2NaHCO3==Na2CO3+H2O+CO2↑
Baking soda has many important uses in production and life. In fire extinguishers, it is one of the raw materials that produce carbon dioxide; in the food industry, it is a main raw material for baking powder; it is also a commonly used raw material when making refreshing drinks; in medicine, it is used to treat gastric acid Too much of one potion.
Big soda
Big soda is The common name of sodium thiosulfate is also called Hypo (transliteration of Hypo). It contains five crystal waters (Na2S2O3·5H2O), so it is also called sodium thiosulfate pentahydrate.
Sodium soda is a colorless and transparent crystal, easily soluble in water, and the aqueous solution is weakly alkaline. It weathers and loses crystal water in dry air above 33°C. It is relatively stable in neutral and alkaline solutions and will decompose rapidly in acidic solutions.
Baking soda has strong complexing ability and can form a complex with silver bromide. It can be used as a fixing agent. Baking soda also has strong reducing properties and can reduce chlorine and other substances. It can also be used as a dechlorinating agent for cotton fabrics after bleaching. In a similar way, iodine stains on fabrics can also be removed with it. In addition, soda is also used for tanning leather, electroplating, and extracting silver from ores. </p
