铬酸钾 [7789-00-6]
-
英文名:Potassium chromate
- 别名:铬酸二钾 铬酸钾,无水
- CAS号:7789-00-6 分子式:CRK2O4 分子量:194.19
T61322-10kg 铬酸钾 [7789-00-6] 99.5% metals basis 10kg 1833.00 促销价:1283.10
T61321-2.5kg 铬酸钾 [7789-00-6] 99.5% metals basis 2.5kg 633.00 促销价:443.10
T61323-500g 铬酸钾 [7789-00-6] 99.9% metals basis 500g 1450.00 促销价:1015.00
T61324-100g 铬酸钾 [7789-00-6] 99.9% metals basis 100g 475.00 促销价:332.50
T61325-25g 铬酸钾 [7789-00-6] 99.9% metals basis 25g 200.00 促销价:140.00
T61326-5g 铬酸钾 [7789-00-6] 99.9% metals basis 5g 83.00 促销价:58.10
T61323-500g 铬酸钾 [7789-00-6] ACS 500g 98.00
T61320-500g 铬酸钾 [7789-00-6] AR 500g 98.00 促销价:68.60
T61322-500g 铬酸钾 [7789-00-6] GR 500g 115.00 促销价:80.50
T61326-100g 铬酸钾 [7789-00-6] PT 100g 46.00
T61329-25g 铬酸钾 [7789-00-6] SP 25g 60.00
T61325-50ml 铬酸钾 [7789-00-6] 铬酸钾标准溶液 1000ug/ml 50ml 212.00
订货编号 | 商品名称 | 规格 | 包装 | 单价 | 促销价 | 会员价 | 数量 |
T61320-500g | 铬酸钾 [7789-00-6] | 99.5% metals basis | 500g | 225.00 | 157.50 | 登录可见 |
T61320-500g 铬酸钾 [7789-00-6] 99.5% metals basis 500g 225.00 促销价:157.50
|
T61322-10kg | 铬酸钾 [7789-00-6] | 99.5% metals basis | 10kg | 1833.00 | 1283.10 | 登录可见 |
T61322-10kg 铬酸钾 [7789-00-6] 99.5% metals basis 10kg 1833.00 促销价:1283.10
|
T61321-2.5kg | 铬酸钾 [7789-00-6] | 99.5% metals basis | 2.5kg | 633.00 | 443.10 | 登录可见 |
T61321-2.5kg 铬酸钾 [7789-00-6] 99.5% metals basis 2.5kg 633.00 促销价:443.10
|
T61323-500g | 铬酸钾 [7789-00-6] | 99.9% metals basis | 500g | 1450.00 | 1015.00 | 登录可见 |
T61323-500g 铬酸钾 [7789-00-6] 99.9% metals basis 500g 1450.00 促销价:1015.00
|
T61324-100g | 铬酸钾 [7789-00-6] | 99.9% metals basis | 100g | 475.00 | 332.50 | 登录可见 |
T61324-100g 铬酸钾 [7789-00-6] 99.9% metals basis 100g 475.00 促销价:332.50
|
T61325-25g | 铬酸钾 [7789-00-6] | 99.9% metals basis | 25g | 200.00 | 140.00 | 登录可见 |
T61325-25g 铬酸钾 [7789-00-6] 99.9% metals basis 25g 200.00 促销价:140.00
|
T61326-5g | 铬酸钾 [7789-00-6] | 99.9% metals basis | 5g | 83.00 | 58.10 | 登录可见 |
T61326-5g 铬酸钾 [7789-00-6] 99.9% metals basis 5g 83.00 促销价:58.10
|
T61323-500g | 铬酸钾 [7789-00-6] | ACS | 500g | 98.00 | 98.00 | 登录可见 |
T61323-500g 铬酸钾 [7789-00-6] ACS 500g 98.00
|
T61320-500g | 铬酸钾 [7789-00-6] | AR | 500g | 98.00 | 68.60 | 登录可见 |
T61320-500g 铬酸钾 [7789-00-6] AR 500g 98.00 促销价:68.60
|
T61322-500g | 铬酸钾 [7789-00-6] | GR | 500g | 115.00 | 80.50 | 登录可见 |
T61322-500g 铬酸钾 [7789-00-6] GR 500g 115.00 促销价:80.50
|
T61326-100g | 铬酸钾 [7789-00-6] | PT | 100g | 46.00 | 46.00 | 登录可见 |
T61326-100g 铬酸钾 [7789-00-6] PT 100g 46.00
|
T61329-25g | 铬酸钾 [7789-00-6] | SP | 25g | 60.00 | 60.00 | 登录可见 |
T61329-25g 铬酸钾 [7789-00-6] SP 25g 60.00
|
T61325-50ml | 铬酸钾 [7789-00-6] | 铬酸钾标准溶液 1000ug/ml | 50ml | 212.00 | 212.00 | 登录可见 |
T61325-50ml 铬酸钾 [7789-00-6] 铬酸钾标准溶液 1000ug/ml 50ml 212.00
|
化学性质
质量标准
99.99% :
外观Appearance Yellow crystals or powder
红外光谱Infrared spectrum Conforms to Structure
纯度Purity ≥99.99% Based on Trace Metals Impurities
铬Cr by Titration by Na2S2O3 25.9 - 27.6 %
ICP Major Analysis Confirms Cr and K Components
痕量金属Trace Metal Analysis ≤200.0 ppm by ICP Atomic emission
GB/T3-918-76
项目ltem 优等纯 分析纯 化学纯
(GR) (AR) (CP)
含量(K2CrO4)Assay,% ≥99.5 99.5 99.0
水溶液反应Water solution reaction 合格 合格 合格
水不溶物lnsoluble matter in ≤0.002 0.004 0.01
氯化物(Cl)Chloride,% ≤0.001 0.003 0.005
硫酸盐(SO2)Sulfale,% ≤0.01 0.02 0.05
钠(Na)Sodium,% ≤0.05 0.1 ——
铝(Al)Aluminum,% ≤0.001 0.003 0.01
钙(Ca)Calcium,% ≤0.001 0.003 0.01
ACS级
项目名称 ACS Grade
含量Assay ≥99.0%
pH(50g/L,25℃)
pH of a 5% solution at 25.0℃ 8.6-9.8
水不溶物Insoluble matter ≤0.005%
氯化物(Cl)Chloride ≤0.005%
硫酸盐(SO4)Sulfate ≤0.03%
钙(Ca)Calcium ≤0.005%
钠(Na)Sodium ≤0.02%
基准试剂PT
纯度Assay: 99.95-100.05%
危险性质
危险品标志 T,N,O
WGK Germany 3
RTECS号 GB2940000
HazardClass 5.1
PackingGroup III
危险类别码 49-46-43-51/53-8-50/53-36/37/38-22-45-52/53
安全说明 53-45-60-61-36/37-26
用途及存储
- 用作分析试剂、氧化剂、媒染剂和金属防锈剂
- 用于铬酸盐的制造。用作氧化剂,印染的媒染剂。用于墨水、颜料、搪瓷、金属防腐等。