发布日期：2019-01-09 浏览次数：190
氟化铵：
CAS 号：12125-01-8
分子式：NH4F
分子量：37.04
海关编码：2826.1910.90
【性状】：无色透明或白色结晶，相对密度1.009(25℃)。 空气中易潮解，易结块，易溶于水，水溶液呈酸性，对皮肤有腐蚀性，有毒。可溶于醇，不溶于丙酮和液氨。受热或遇热水即分解成氨和氟化氢。
【产品指标】：
指标值 | ||
优等品 | 一等品 | |
氟化铵 (NH4F) 含量% | ≥97.00 | ≥95.00 |
灼烧残渣含量 % | ≤0.05 | ≤0.10 |
游离铵(NH4 )含量% | ≤1.2 | ≤1.5 |
氟硅酸铵〔( NH4)2SiF6〕含量% | ≤0.50 | ≤1.00 |
水不溶物含量% | ≤0.5 | ≤0.5 |
水份% | ≤3 | ≤5 |
【产品用途】：用作玻璃蚀刻剂，金属表面的化学抛光剂、酿酒的消毒剂，防腐剂，纤维的媒染剂，也用于提取稀有元素等。
【包装】：聚乙烯编织袋内衬塑料袋，每袋净重25公斤，或根据客户要求订做。
【贮运】：本品属无机有毒物品，宜存放在干燥、通风良好的储存室，不宜与硫酸或食品同运和贮存。
Ammonium fluoride
Formula：NH4F
Molecular：37.04
CAS No.：12125-01-8
HS Code：2826.1910.90
[Properties]:colorless or white crystal, relative density is 1.009(25℃).Eeasy to deliquescence and caking in the air.Soluble in water,and appears acidity,with corrosive to skin and toxic.Soluble in alcohol,but insoluble in propanone and liquid ammonia.,it will occur to release ammonia and ammonium bifluoride when it is in hot water or heated.
[Quality standard]:
Index Name | Target Index | |
Excellent-class | First-class | |
Ammonium fluoride (NH4 F) content % | ≥97.00 | ≥95.00 |
Combustion residue content % | ≤0.05 | ≤0.10 |
Free ammonia (NH4 ) content % | ≤1.2 | ≤1.5 |
Ammonium Fluorosilicate 〔( NH 4 )2 SiF 6 〕content % | ≤0.50 | ≤1.00 |
Mass Franction of loss on dry % | ≤0.5 | ≤0.5 |
Moisture % | ≤3 | ≤5 |
[Application]:It is uesed for glass etchant,chemical polish for metal surface,preservative and disinfector in brewing,fibrous mordant,and also be used to extract rare elements.
[Packing]: Polyethylene weaving inner lined with plastic bag. Net weight is 25kg.Or as per customer’s required.
[Storage and transportation ]: Inorganic toxic substance, and should be stored in dry and adequately ventilated warehouse, and may not be co-stored or co-transported with sulfuric acid and edible food.
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