溴 化 铵
Ammonium Bromide
化学名称 / Chemical Name： 溴化铵 / Ammonium Bromide
分子式 / Molecular formula ： NH4Br
CAS：12124-97-9
技术指标 / Quality Standard：
项目 / Project | First class | Second class | Super class |
主含量（干基）/ Principal Content (dry basis) | ≥99.5% | ≥99.5% | ≥99.0% |
水分 / Moisture Content | ≤0.5% | ≤0.5% | ≤0.5% |
水不溶物 / Water-insoluble substance | ≤0.005% | ≤0.01% | — |
氯化物 / Chlorides | ≤0.2% | ≤0.2% | ≤0.5% |
碘化物 / Iodide | ≤0.001% | — | — |
硫酸盐 / Sulfate | ≤0.005% | ≤0.005% | ≤0.01% |
PH（5%） | 4.5—6.0 | 4.5—6.0 | 4.5—6.0 |
砷 / Arsenic | — | — | ≤0.0004％ |
铅 / Lead | ≤0.2ppm | ≤5ppm | ≤5ppm |
铁 / Iron | ≤0.5ppm | ≤1ppm | — |
铜 / Copper | ≤0.5ppm | ≤1.0ppm | — |
铋 / Bismuth | ≤0.2ppm | ≤0.5ppm | — |
水溶液透光度/Water transmittance（250g/l） | 93～100（410nm） | 85～100（410nm） | — |
澄清度试验 / Clarity test | 合 格 | 合 格 | — |
水溶液色度/Water chromaticity（250g/l） | ≤15.0黑曾 | — | — |
用途：用于制造照相胶片感光乳剂、显影剂，用作木材防腐剂、水处理和防火阻燃助剂
Used for making photographic film emulsion, developer, wood preservatives, water treatment and fire retardant additives
包装与储存 / Packaging and storage
固体粉末采用25千克复合塑料编织袋或者吨袋包装。
The solid powder is packed in 25 kg composite plastic woven bags or tons bags.
密闭保存，储存在干燥、通风良好的区域，远离热源、禁止明火。所存放仓库应按要求堆、码托盘，并且远离商住区。
Sealed storage, storage in a dry, well-ventilated area, away from the heat source, prohibit open fire. The storage
warehouse should be required to heap, yards pallet,and away from commercial and residential areas.
