硝酸铬,Chromium nitrate；13548-38-4,7789-02-8,化夏试剂

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硝酸铬 [7789-02-8]
英文名：Chromium(III) nitrate nonahydrate
别名：Chromium nitrate；13548-38-4
CAS号：7789-02-8 分子式：CRN3O9·9H2O 分子量：400.148

PG103756-100g 硝酸铬 [7789-02-8] 99.95% metals basis 100g 360.00 促销价:270.00
PG103755-25g 硝酸铬 [7789-02-8] 99.95% metals basis 25g 160.00 促销价:120.00
PG103753-100g 硝酸铬 [7789-02-8] 99.99% metals basis 100g 3062.00 促销价:2449.60
PG103754-25g 硝酸铬 [7789-02-8] 99.99% metals basis 25g 1087.00 促销价:869.60
PG103755-5g 硝酸铬 [7789-02-8] 99.99% metals basis 5g 375.00 促销价:300.00
PG103756-500g 硝酸铬 [7789-02-8] AR,99.0% 500g 108.00 促销价:68.04
PG103757-100g 硝酸铬 [7789-02-8] AR,99.0% 100g 46.00 促销价:28.98
PG103758-500g 硝酸铬 [7789-02-8] AR,99.0% 2.5kg 325.00 促销价:204.75

订货编号	商品名称	规格	包装	单价	促销价	会员价	数量
PG103756-100g	硝酸铬 [7789-02-8]	99.95% metals basis	100g	360.00	270.00	登录可见	PG103756-100g 硝酸铬 [7789-02-8] 99.95% metals basis 100g 360.00 促销价:270.00
PG103755-25g	硝酸铬 [7789-02-8]	99.95% metals basis	25g	160.00	120.00	登录可见	PG103755-25g 硝酸铬 [7789-02-8] 99.95% metals basis 25g 160.00 促销价:120.00
PG103753-100g	硝酸铬 [7789-02-8]	99.99% metals basis	100g	3062.00	2449.60	登录可见	PG103753-100g 硝酸铬 [7789-02-8] 99.99% metals basis 100g 3062.00 促销价:2449.60
PG103754-25g	硝酸铬 [7789-02-8]	99.99% metals basis	25g	1087.00	869.60	登录可见	PG103754-25g 硝酸铬 [7789-02-8] 99.99% metals basis 25g 1087.00 促销价:869.60
PG103755-5g	硝酸铬 [7789-02-8]	99.99% metals basis	5g	375.00	300.00	登录可见	PG103755-5g 硝酸铬 [7789-02-8] 99.99% metals basis 5g 375.00 促销价:300.00
PG103756-500g	硝酸铬 [7789-02-8]	AR,99.0%	500g	108.00	68.04	登录可见	PG103756-500g 硝酸铬 [7789-02-8] AR,99.0% 500g 108.00 促销价:68.04
PG103757-100g	硝酸铬 [7789-02-8]	AR,99.0%	100g	46.00	28.98	登录可见	PG103757-100g 硝酸铬 [7789-02-8] AR,99.0% 100g 46.00 促销价:28.98
PG103758-500g	硝酸铬 [7789-02-8]	AR,99.0%	2.5kg	325.00	204.75	登录可见	PG103758-500g 硝酸铬 [7789-02-8] AR,99.0% 2.5kg 325.00 促销价:204.75

化学性质

硝酸铬有无水物及多种水合物，无水物（CAS：13548-38-4）为淡绿色粉末，常见的九水物为深紫色正交单斜结晶。水合硝酸铬在空气中风化，失去部份结晶水，且易潮解。九水硝酸铬易溶于水、酸、碱、乙醇、丙酮，水溶液在热时呈绿色，冷却后又迅速变为红紫色。熔点:60℃

质量标准

质量指标：HG3-936-76
项目Item                                      分析纯化学纯
                                               (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
硫酸盐(SO₄)Sulfate,%                        ≤ 0.01   0.02
钠(Na)Sodium,%                              ≤ 0.05   0.1
铝(Al)Aluminum,%                            ≤ 0.02   0.05
钾(K)Potassium,%                            ≤ 0.05   0.1
钙(Ca)Calcium,%                             ≤ 0.005  0.01
铁(Fe)Iron,%                                ≤ 0.005  0.01

99.95% metals basis:

外观Appearance                          Black Crystals
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.95% Based on Trace Metals Impurities of ICP
铬Chromium(Titration by Na2S2O3)         12.7- 13.2 %
ICP Major Analysis Confirmed            Confirms Chromium Component
痕量金属分析total metallic impurities   ≤500ppm by ICP Atomic emission

99.99% metals basis:

外观Appearance                          Black Crystals
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities of ICP
铬Chromium(Titration by Na2S2O3)         12.7- 13.2 %
ICP Major Analysis Confirmed            Confirms Chromium Component
痕量金属分析total metallic impurities   ≤100ppm by ICP Atomic emission