中文无码精品一区二区三区,欧美亚洲777奇米四色,72人少妇精品导航,777熟女色

Welcome to Fujian Yongjing Technology Co., Ltd. the website!

Contact us

Add: 18#, Xin'An Road, Shaowu City, Fujian, China
International Trade Dept.
Tel: +86-599-6655932/6654968
Fax: +86-599-6654591
Home Trade Dept. 
Tel: +86-599-6654866/6654968
Fax: +86-599-6655755
High-purity Chemicals Dept.
Tel: +86-599-6655536/6654968
Fax: +86-599-6655755


Products

Electronic Grade Anhydrous Hydrofluoric Acid

Quality Standard

Molecular FormulaHF                         Molecular Weight20.01

No.

Item

Unit

Spec.

1

Hydrofluoric Acid (HF)

wt%

≥99.999

2

Chloride(Cl)

ppb

≤100

3

Nitrate (NO3)

ppb

≤100

4

Phosphate(PO4

ppb

≤100

5

Sulfate(SO4

ppb

≤100

6

Silicon(SI)

ppb

≤100

7

Iron(FE)

ppb

≤50

8

Nickel(NI)

ppb

≤50

9

Chromium(CR)

ppb

≤50

10

Copper(CU)

ppb

≤50

11

Sodium(NA)

ppb

≤50

12

Calcium(CA)

ppb

≤50

Properties
Colorless transparent liquid with strong Hydrofluoric Add, highly toxic, strong corrosivity, boiling point is 19.5℃
Application
Semiconductor etching
Storage
Please store in warehouse with shack to avoid solarization
Transport
As level one inorganic sour corrosion substance
Packing
Packed in medium pressure high purity steel cylinders, each bottle is 4L, 10L, 40L

【Back】

Copyright(C)2017,Fujian Yongjing Technology Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice

亚洲成熟人网站| 啊灬啊灬啊灬快灬深用力试看五次 | 久久精品伊人波多野结衣| 亚欧无线一线二线三线区别| 母亲二免费观看全集| 婷丁香| 成年人午夜在线免费视频| 午夜护士黄色网站有哪些| 婷婷久久精品一区二区| 狂野猛交ⅹxxx吃奶| 色吊丝最新永久免费视频| 久久久精品一区二区三洲| 欧美图一区二区| 亚洲无人区码一码二码三码的含义| 国产69精品久久久久精东| 国产精品国产高清国产一区| 国产东北露脸对白| 久久久噜噜噜www成人网| 日韩成年人AU高清无码| 亚洲人成免费观看| 黑人巨吊暴操日本女人| 亚洲男人av在线| 粗口羞辱h文| 在线不卡av片免费观看| 秘书张开腿让我爽一夜| 色综合网天天综合色视频| 午夜精品久久久久久久无码| 欧美精品久久久久久久蜜| Gay男同片黄网站www中国| 国产欧美在线观看不卡| 一区二区小说区无码另类| 3d同人动漫网站入口| 熟妇高潮一区二区三区| 手机看片精品一区二区三区| 亚洲欧洲日产国码综合在线| 色欲久久久天天天综合网精品| 欧美狠狠搞| 色呦呦亚洲视频在线播放| 99久久毛片免费观看| 丰满极品少妇BBBB丨19| av你懂的亚洲av自拍|