国产精品偷伦视频免费观看了-国产精品偷伦视频免费观看-国产精品偷伦视频免费-国产精品偷伦视频免-国产精品偷伦费观看电影-国产精品偷伦

Contact: Teresa Du
TEL: +86 871 63627807
MP: +86 18988158746
Email: info@ynfuye.com
CN | EN
POTASSIUM BOROFLUORIDE
admin2019-06-04 5864


Molecular formula: KBF4

Molecular Weight: 125.91

Physical and chemical properties: White powder or gel crystallization, no hygroscopic, bitter taste, crystallization from aqueous solution can get six-sided prism crystal, relative density 2.50, melting point 530 "C, slightly soluble in water and hot ethanol insoluble in cold ethanol. Begins to decompose during melting. Can be decomposed by sulfuric acid and other strong acids to produce boron trifluoride. Fluoride and borate are produced when molten with alkali metal carbonate. Poisonous!

Product usage:

Used as a flux for hot welding and copper welding, aluminum magnesium is used to produce boron alloy raw materials, and in a heavy-duty grinding wheel with resin as abrasive binder as a filler. In Banyan and Banyan Silver Gold, stainless steel, can lift the dregs of light metal. Raw materials for the production of boron trifluoride and other fluorine salts.

It is also used in electrochemical processes and reagents.

 


product rank

 chemical composition  %

KBF4

 H3BO3

Si

Na

 Ca

 Mg

 CI

H2O


Index Value

98

0.4

0.2

0.1

0.05

0.05

0.1

0.3


Message
Message
Hello! If you have any questions about our services, please fill in the questions and submit them. We will reply to you as soon as possible. We will keep your information confidential.
  • Name:
  • Tell:
  • Title:
  • Content:
  • Code:
Contact us
Mobile mall
Top
主站蜘蛛池模板: 国产黄大片在线观看视频 | 精品日韩网址导航 | 精品国产系列 | 日韩一区二区操 | 国产精品一区高清在线观看 | 国产福利一区二区三区在线 | 国产人碰人摸人爱免费视频 | 日本一本二本三区免费高清 | 国语自产精品视频在线播放 | 欧美日韩亚洲另 | 国产人妖ts视频在线观看 | 亚洲日本在线不卡 | 日韩亚洲国产欧美精品 | 蜜汁娇妻有点甜全文阅读 | 国产中文视频一区在线 | 日本成熟丰满老妇xxxx | 国产综合色在 | 日本高清不卡中文字幕网 | 日韩国产一区中文字幕在线观看 | 亚洲自拍色综合图第一页区 | 国产盗摄91精品一区 | 国产97碰免费视频 | 国产盗摄xxxx视频x | 包子铺welcome仙踪林 | 区视频在线观看 | 日韩欧美一卡二区 | 亚洲欧美另类在线观看一区二区 | 羞羞影院成人午夜爽爽在线 | 日韩欧美亚洲中文字幕 | 国产欧美日韩第一页 | 国产尤物aⅴ尤物在线观看 日韩欧美国产精品免费一二 | 欧美高清一区二区精品 | 欧美日韩国产一区二区三 | 国产高清在线男人的天堂 | 国产精品卡2卡三卡4卡 | 欧美日韩国产一级视频在线看 | 国产制服丝袜一区二区三区 | 拍拍拍国产美女午夜视频 | 蜜桃传媒文化有限公司免费版 | 国产精品露脸国语对白99 | 欧美色淫 |