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

男人猛躁进女人免费视频看n | 日韩性爱av在线观看| 日本精品久久久久久久蜜桃| 国产精品天天看| 中文字幕人妻互换av久久| 亚洲成色777777女色窝| ipx一369天海翼在线播放| 一级少妇全黄性色生活片| 国产xxx视频在线观看| 无码粉嫩虎白一线天在线观看| 久久久免费国产| gogogo高清视频大全| 亚洲一区二区久久av网站| 亚洲乱码国产乱码精品精| 韩国美女性猛交少妇| 欧美一级一片内射久久久| 91精品一区二区三区在线| 少妇人妻激情| 国产同事露脸对白在线视频| 中文字幕国产剧情亚洲精品| 亚洲国产日韩在线观看不卡| 69久久夜色精品国产69| 高清大片csgo| 国产精品亚洲综合久久小说| 精品自拍日本| 在线小说视频图片大全免费| 松下纱荣子ipx-461| 在线日韩高清av| EEUSS熟妇| 中文字幕中日韩欧美一区| 亚洲的天堂在线中文字幕| 欧洲色综合天天在线观看 | 97国产在线一区二区精品| 用力插在线视频| 两性色午夜视频免费国产| 人妻少妇偷拍| 亚洲男人天堂| 欧洲无码精品a码水蜜桃| 女王榨精—视频丨vk| 日韩高清干逼| 男ji大巴进人女人的视|