氟化銨：
CAS 號：12125-01-8
分子式：NH4F
分子量：37.04
海關(guān)編碼：2826.1910.90
【性狀】：無色透明或白色結(jié)晶，相對密度1.009(25℃)。 空氣中易潮解，易結(jié)塊，易溶于水，水溶液呈酸性，對皮膚有腐蝕性，有毒?？扇苡诖?，不溶于丙酮和液氨。受熱或遇熱水即分解成氨和氟化氫。
【產(chǎn)品指標】：
指標值 | ||
優(yōu)等品 | 一等品 | |
氟化銨 (NH4F) 含量% | ≥97.00 | ≥95.00 |
灼燒殘渣含量 % | ≤0.05 | ≤0.10 |
游離銨(NH4 )含量% | ≤1.2 | ≤1.5 |
氟硅酸銨〔( NH4)2SiF6〕含量% | ≤0.50 | ≤1.00 |
水不溶物含量% | ≤0.5 | ≤0.5 |
水份% | ≤3 | ≤5 |
【產(chǎn)品用途】：用作玻璃蝕刻劑，金屬表面的化學拋光劑、釀酒的消毒劑，防腐劑，纖維的媒染劑，也用于提取稀有元素等。
【包裝】：聚乙烯編織袋內(nèi)襯塑料袋，每袋凈重25公斤，或根據(jù)客戶要求訂做。
【貯運】：本品屬無機有毒物品，宜存放在干燥、通風良好的儲存室，不宜與硫酸或食品同運和貯存。
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.
