登录 添加会员 求助
 
HezeChangjiangChemicalCo.,Ltd.
 
 
Recommended Results 
 
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) 

  产品分类 : 化學->化工原料

     
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
         

  产品规格
 
Model No:    CAS: 2809-21-4
  Country  CN
  Brand  YANGTZE
  Materials  liquid
  Color  colorless or light yellow transparent liquid
  Packing  30kg/barrel 250kg/barrel

 

  产品描述
   
  Properties:
HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals' surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature 250degree celsius. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.

Specification:
items index
Appearance Colorless or light yellow transparent liquid White crystal powder
Active content (HEDP)% 58.0-62.0 89.0 min
Phosphorous acid (as PO33-)% 2.0 max 0.5 max
Phosphoric acid (as PO43-)% 0.8 max 0.5 max
Chloride (as Cl-)% 0.01 max 0.01 max
pH (1% solution) 2 max 2 max
Density (20degree celsius)g/cm3 1.40 -
Fe ion ppm 10 max 20 max
Colour APHA (Hazen) 40 max -

Usage:
HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.

Package and Storage:
HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.

Storage for ten months in room shady and dry place.

Safety Protection:
Acidity, Avoid contact with eye and skin, once contacted, flush with water

  其他类似产品
 
Amino Trimethylene Phosphonic Acid (ATMP)

Amino Trimethylene Phosphonic Acid (ATMP)
 
   


[ 返回产品型录 ]

Commerce 会员:
请登录您的帐号跟口令,系统将为您填入您的相关资料
 
 
帐号:
口令:
 记住我的帐号
 
 
填写下列表格并寄送询问函．所有的询问信函将会自动寄发给你想联络的公司
主題
內容 （ 请勿输入公司名称、Email、电话、传真、网址 ）
   

 


公司简介:
* 公司名称
*E-mail
*国家
*联络人
网址
*电话
 - -
传真
 - -
*邮递区号
*城市
*街道地址
*企业形态
 批发商   出口商 进口商 制造商
大盘商 零售商  代理商 Retrofitter 使用者
其他, 请详细说明:
*安全口令
请输入所显示的安全口令


网站导览 l 隐私权政策 l 服务团队 l 合作提案 l 联络我们 l 帮帮我 l 广告刊登l  B2B商业伙伴
    .