• 硝酸鉻 [7789-02-8]

  • 英文名：Chromium(III) nitrate nonahydrate
  • 別名：Chromium nitrate；13548-38-4
  • CAS號(hào)：7789-02-8 分子式：CRN3O9·9H2O 分子量：400.148
PG103756-100g 硝酸鉻 [7789-02-8] 99.95% metals basis 100g 360.00 促銷價(jià):270.00
PG103755-25g 硝酸鉻 [7789-02-8] 99.95% metals basis 25g 160.00 促銷價(jià):120.00
PG103753-100g 硝酸鉻 [7789-02-8] 99.99% metals basis 100g 3062.00 促銷價(jià):2449.60
PG103754-25g 硝酸鉻 [7789-02-8] 99.99% metals basis 25g 1087.00 促銷價(jià):869.60
PG103755-5g 硝酸鉻 [7789-02-8] 99.99% metals basis 5g 375.00 促銷價(jià):300.00
PG103756-500g 硝酸鉻 [7789-02-8] AR,99.0% 500g 108.00 促銷價(jià):68.04
PG103757-100g 硝酸鉻 [7789-02-8] AR,99.0% 100g 46.00 促銷價(jià):28.98
PG103758-500g 硝酸鉻 [7789-02-8] AR,99.0% 2.5kg 325.00 促銷價(jià):204.75
訂貨編號(hào) 商品名稱 規(guī)格 包裝 單價(jià) 促銷價(jià) 會(huì)員價(jià) 數(shù)量
PG103756-100g 硝酸鉻 [7789-02-8] 99.95% metals basis 100g 360.00 270.00 特價(jià)產(chǎn)品 登錄可見(jiàn)
PG103756-100g 硝酸鉻 [7789-02-8] 99.95% metals basis 100g 360.00 促銷價(jià):270.00
PG103755-25g 硝酸鉻 [7789-02-8] 99.95% metals basis 25g 160.00 120.00 特價(jià)產(chǎn)品 登錄可見(jiàn)
PG103755-25g 硝酸鉻 [7789-02-8] 99.95% metals basis 25g 160.00 促銷價(jià):120.00
PG103753-100g 硝酸鉻 [7789-02-8] 99.99% metals basis 100g 3062.00 2449.60 登錄可見(jiàn)
PG103753-100g 硝酸鉻 [7789-02-8] 99.99% metals basis 100g 3062.00 促銷價(jià):2449.60
PG103754-25g 硝酸鉻 [7789-02-8] 99.99% metals basis 25g 1087.00 869.60 登錄可見(jiàn)
PG103754-25g 硝酸鉻 [7789-02-8] 99.99% metals basis 25g 1087.00 促銷價(jià):869.60
PG103755-5g 硝酸鉻 [7789-02-8] 99.99% metals basis 5g 375.00 300.00 登錄可見(jiàn)
PG103755-5g 硝酸鉻 [7789-02-8] 99.99% metals basis 5g 375.00 促銷價(jià):300.00
PG103756-500g 硝酸鉻 [7789-02-8] AR,99.0% 500g 108.00 68.04 登錄可見(jiàn)
PG103756-500g 硝酸鉻 [7789-02-8] AR,99.0% 500g 108.00 促銷價(jià):68.04
PG103757-100g 硝酸鉻 [7789-02-8] AR,99.0% 100g 46.00 28.98 登錄可見(jiàn)
PG103757-100g 硝酸鉻 [7789-02-8] AR,99.0% 100g 46.00 促銷價(jià):28.98
PG103758-500g 硝酸鉻 [7789-02-8] AR,99.0% 2.5kg 325.00 204.75 登錄可見(jiàn)
PG103758-500g 硝酸鉻 [7789-02-8] AR,99.0% 2.5kg 325.00 促銷價(jià):204.75
  •  訂貨編號(hào)
  •  商品名稱
  •  規(guī)格
  •  包裝
  •  單價(jià)
  •  促銷價(jià)
  •  會(huì)員價(jià)
  •  數(shù)量

化學(xué)性質(zhì)

硝酸鉻有無(wú)水物及多種水合物，無(wú)水物（CAS：13548-38-4）為淡綠色粉末，常見(jiàn)的九水物為深紫色正交單斜結(jié)晶。水合硝酸鉻在空氣中風(fēng)化，失去部份結(jié)晶水，且易潮解。九水硝酸鉻易溶于水、酸、堿、乙醇、丙酮，水溶液在熱時(shí)呈綠色，冷卻后又迅速變?yōu)榧t紫色。熔點(diǎn):60℃

質(zhì)量標(biāo)準(zhǔn)

  

質(zhì)量指標(biāo)：HG3-936-76
項(xiàng)目Item                                      分析純 化學(xué)純
                                               (AR)   (CP)
含量［Cr(NO3)3·9H2O］Assay,%               ≥ 99.0   98.0
水不溶物Insoluble matter in water,%         ≤ 0.005  0.02
氯化物(Cl)Chloride,%                        ≤ 0.005  0.01
硫酸鹽(SO4)Sulfate,%                        ≤ 0.01   0.02
鈉(Na)Sodium,%                              ≤ 0.05   0.1
鋁(Al)Aluminum,%                            ≤ 0.02   0.05
鉀(K)Potassium,%                            ≤ 0.05   0.1
鈣(Ca)Calcium,%                             ≤ 0.005  0.01
鐵(Fe)Iron,%                                ≤ 0.005  0.01



99.95% metals basis:


外觀Appearance                          Black Crystals
X-射線衍射分析X-Ray Diffraction         Conforms to Structure
純度Purity                              ≥99.95% Based on Trace Metals Impurities of ICP
鉻Chromium(Titration by Na2S2O3)         12.7- 13.2 %
ICP Major Analysis Confirmed            Confirms Chromium Component
痕量金屬分析total metallic impurities   ≤500ppm by ICP Atomic emission



99.99% metals basis:


外觀Appearance                          Black Crystals
X-射線衍射分析X-Ray Diffraction         Conforms to Structure
純度Purity                              ≥99.99% Based on Trace Metals Impurities of ICP
鉻Chromium(Titration by Na2S2O3)         12.7- 13.2 %
ICP Major Analysis Confirmed            Confirms Chromium Component
痕量金屬分析total metallic impurities   ≤100ppm by ICP Atomic emission

  

危險(xiǎn)性質(zhì)

  

用途及存儲(chǔ)

用于制取其他無(wú)機(jī)及有機(jī)鉻化合物，制取催化劑及載體，用作阻蝕劑及媒染劑，用于玻璃工業(yè)、陶瓷彩釉；三價(jià)鉻電鍍用鉻試劑。

??密封干燥保存。