性狀 遇臭氧形成過氧化物。遇過氧化氫形成過氧化鉻酸。在250℃分解成三氧化二鉻及氧。易溶于水、醇、禁發 硫酸及**，能溶于硫

酸、堿及熱的溴酸鉀溶液。系強氧化劑，能氧化醇及其他有機物質，與有機物等易燃物質接觸能起火。遇酒精、苯即能發生燃燒或

爆炸。對動植物組織有腐蝕性，比重2.7（結晶）、2.8（熔融物）。凝固點170－172℃，熔融時稍有分解，在200－150℃分解放出

氧，生成介于CrO 3和Cr2O 3的中間化合物。
  
備注:  以上描述，僅作參考，并不表示您收到的產品，與此項描述完全相符，產品的出廠標準，請參見質量標準。
質量標準  
  可HG/T 3-934-76
項目Item                                      分析純     化學純
                                               (AR)      (CP)
含量CrO3Assay,%                               ≥99.0     98.0
水不溶物Insoluble matter in water,%           ≤0.003    0.01
氯化物(Cl)Chloride,%                          ≤0.001    0.005
禁發 硫酸鹽(SO4)Sulfate,%                          ≤0.01     0.05
鈉(Na)Sodium,%                                ≤0.15     0.3
鋁(Al)Aluminum,%                              ≤0.003    0.01
鉀(K)Potassium,%                              ≤0.05     0.1
鐵(Fe)Iron,%                                  ≤0.01     0.02

ACS級
項目名稱Item                                 ACS Grade
含量Assay                                     ≥98.0%
不溶物Insoluble matter                        ≤0.01%
氯化物(Cl)Chloride(Cl)                        ≤0.005%
硝酸鹽(NO3)Nitrate                            ≤0.05%
禁發 硫酸鹽(SO4)Sulfate                            ≤0.005%
鋁(Al)Aluminum(Al)                            ≤0.02%
鋇(Ba)Barium(Ba)                              ≤0.01%
鐵(Fe)Iron(Fe)                                ≤0.02%
鈉(Na)Sodium(Na)                              ≤0.02%

99.9% metals basis:

外觀Appearance                          Red to Purple Powder or Flakes
X-射線衍射X-Ray Diffraction             Conforms to Structure
純度Purity                              ≥99.9% Based on Trace Metals Impurities
鉻Cr by Titration by Na2S2O3            51.2- 52.7 %
ICP Major Analysis Confirmed            Confirms Chromium Component
總痕量金屬雜質total metallic impurities   ≤1000ppm by ICP Atomic emission

99.99% metals basis:

外觀Appearance                          Red to Purple Powder
X-射線衍射X-Ray Diffraction             Conforms to Structure
純度Purity                              ≥99.99% Based on Trace Metals Impurities
鉻Cr by Titration by Na2S2O3            51.2- 52.7 %
ICP Major Analysis Confirmed            Confirms Chromium Component
總痕量金屬雜質total metallic impurities   ≤200ppm by ICP Atomic emission