精品无码久久久,国产成人精品日本亚洲语音,久久免费看少妇高潮喷水,亚洲国产色图

Recommended Products
75-12-7
123-39-7
107-31-3
124-40-3
75-50-3
647-45-2
617-84-5
74-89-5
68-12-2
Products

Formamide(FA)

Molecular Formula HCONH2
Molecular Weight 45.041
Properties Clear,colorless liquid and with ammonia-like-weak odor m.p.2.55°C,b.p.210-212°C (partial decomposition beginning at 180°C),flash point 154°C , Specific gravity 1.1334(20°C). Be soluble in water and alcohol,slightly soluble in benzene and ether,etc,hygroscopic.
Uses Formamide is the material to synthesize pharmaceuticals,spicery and dyestuffs.It is used as solvent in synthetic fiber spinning,plastic processing and lignin ink production etc,as paper treating agent,coagulation accelerator in oil well drilling and building industry,as carburant in casting industry,glue softener and as polar solvent in organic synthesis.
Packing and storage 200L plastic drums or steel-plastic composite drums. Tightly closed to prevent from leaking and touching water. Stored in cool,ventilated and dry places,far from fire and heat source.
Specifications Q/320412 XY204-2008 

Index name

Top-grade

First grade

Appearance

colorless transparent liquid without visible impurities

 

Assay, % ≥

99.5

99.0

Methanol, % ≤

0.15

0.30

Chroma, (Pt-Co)# : ≤

10

20

Moisture, % ≤

0.050

0.10

Fe, ppm ≤

0.20

-

Ammonia, % ≤

0.010

0.020

Formic acid, % ≤

0.010

0.020

Ammonium formate , % ≤

0.08

0.10

Back

Copyright(C)2017,Suqian Xinya Technology Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice
少妇一级淫片免费放| 人妻内射导航| 激情综合网五月天| 少妇久久久| 国产自产c13区| 成人免费午夜视频| 亚洲色swag在线无码| 久久久国产精品无码一区二区| 久妻一区| 亚洲国产精品久久久天堂| 欧美性爱,四季亚洲日韩| 夜夜躁狠狠躁日日躁2022| 福利视频 欧美专区| 伊人成综| 人妻中文字幕高清在线| www.xxav| 丰满老熟好大BBBXXX| 久久成人一级视频| 夫妻在线不卡| 偷拍视频久久| 东北少妇高潮| av天天色| 久草久草久草| 99精品国产高清一区二区麻豆| 新百年AV在线| 极品粉嫩嫩模大尺度无码视频| 亚洲成人AV在线播放观看| 国产一二三区视频| 久久久久亚洲av成人网人人网站| 99久久精品国产一区二区成人| 久久久久久久一区二区三区人妻| 成人激情综合网| 内射国产内射夫妻免费频道| 成人三级黄色片| 亚洲高清无码久久久久| 干人妻| 国产情侣自拍网| 综合五月天| 午夜诱惑| 国产亚洲Av码Av男人的天堂| 天堂综合网|