PAA

1. 中文介绍①PAA (abbr) Pacific Alaska Airways 〈美〉太平洋阿拉斯加航空公司
②Polyacrylic Acid聚丙烯酸(PAA)
CAS No. 9003-01-4
结构式
一、产品性能PAA无毒,易溶于水,可在碱性和中等浓缩倍数条件下运行而不结垢。PAA能将碳酸钙、硫酸钙等盐类的微晶或泥沙分散于水中不沉淀,从而达到阻垢目的;PAA是一种常用的分散剂,除用于循环冷却水系统作阻垢分散剂使用外,还广泛应用于造纸和纺织、印染、陶瓷、涂料等行业。
二、质量指标符合GB /T10533—2000
项 目
指 标
名 称
PAA
外 观
无色或黄色
固体含量 % ≥
30.0
游离单体(以CH2=CH-COOH计) % ≤
0.50
密度(20℃)g/cm≥
1.09
PH
≤3.0(1%水溶液)
极限粘度(30℃)dl/g
0.06~0.10
本厂还可提供40%的聚丙烯酸供客户选购。
三、应用范围与使用方法PAA常与其他水处理剂组成配方使用,用作电厂、化工厂、化肥厂、炼油厂和空调系统等循环冷却水系统中的阻垢分散剂。PAA具体配方及用量根据现场水质及设备材质情况由试验而定。PAA单独使用,一般使用浓度为1~15mg/L。
四、包装与储存PAA用塑料桶包装,每桶25kg。贮于室内阴凉处,贮存期为十二个月。
五、安全防护PAA对眼和皮肤有刺激作用,但无急性毒性。
二、英文介绍
1.Polyacrylic Acid (PAA)【CAS】 9003-01-4
Properties
:
PAA is innoxious and soluble in water, it can be used in situations of alkaline and high concentration without scale sediment. PAA can disperse the microcrystals or microsand of calcium carbonate, calcium phosphate and calcium sulfate. PAA is used as scale inhibitor and dispersant for circulating cool water system, papermaking, weave, dyeing, ceramic, painting, etc.
Specification:
items
index
Appearance
Colorless or light yellow transparent liquid
Solid content %
30 min
Free monomer (CH2=CH-COOH) %
0.5 max
Density (20℃)g/cm
1.09 min
pH(1% solution)
3.0 max
Usage:
PAA can be used as scale inhibitor and dispersant in circulating cool water systems in power plants, iron & steel factories, chemical fertilizer plants, refineries and air conditioning systems. Dosage should be in accordance with water quality and equipment materials. When used alone, 1-15mg/L is preferred.
Package and Storage:
Normally In 200kg net Plastic Drum, IBC drum can also be used as required. Storage for one year in room shady and dry place.
2.动物:棘蛙
It's an animal.Paa is a genus of true frogs.Typically, true frogs are smooth, moist-skinned frogs, with large, powerful legs and extensively webbed feet。
3.在...上(丹麦)
4.人名(老外)