硫酸铬钾,十二水硫酸铬钾十二水合硫酸铬(III)钾铬矾十二水硫酸铬钾钾铬矾,7788-99-0,化夏试剂

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硫酸铬钾 [7788-99-0]
英文名：Chromium potassium sulfate dodecahydrate
别名：十二水硫酸铬钾十二水合硫酸铬(III)钾铬矾十二水硫酸铬钾钾铬矾
CAS号：7788-99-0 分子式：CRH24KO20S2 分子量：499.4

P63976-500g 硫酸铬钾 [7788-99-0] 99.9% 500g 425.00 促销价:297.50
P63977-100g 硫酸铬钾 [7788-99-0] 99.9% 100g 176.00 促销价:123.20
P63978-25g 硫酸铬钾 [7788-99-0] 99.9% 25g 83.00 促销价:58.10
P63979-500g 硫酸铬钾 [7788-99-0] 99.99% 500g 883.00 促销价:573.95
P63970-100g 硫酸铬钾 [7788-99-0] 99.99% 100g 350.00 促销价:245.00
P63976-25g 硫酸铬钾 [7788-99-0] 99.99% 25g 150.00 促销价:105.00
P63971-5g 硫酸铬钾 [7788-99-0] 99.99% 5g 53.00 促销价:37.10
P63970-500g 硫酸铬钾 [7788-99-0] ACS 500g 113.00 促销价:84.75
P63972-500g 硫酸铬钾 [7788-99-0] AR 500g 75.00 促销价:47.25
P63974-100g 硫酸铬钾 [7788-99-0] AR 100g 33.00 促销价:20.79
P63978-500g 硫酸铬钾 [7788-99-0] GR 500g 113.00 促销价:71.19
P63972-100g 硫酸铬钾 [7788-99-0] PT 100g 136.00 促销价:102.00
P63971-25g 硫酸铬钾 [7788-99-0] SP 25g 126.00 促销价:94.50

订货编号	商品名称	规格	包装	单价	促销价	会员价	数量
P63976-500g	硫酸铬钾 [7788-99-0]	99.9%	500g	425.00	297.50	登录可见	P63976-500g 硫酸铬钾 [7788-99-0] 99.9% 500g 425.00 促销价:297.50
P63977-100g	硫酸铬钾 [7788-99-0]	99.9%	100g	176.00	123.20	登录可见	P63977-100g 硫酸铬钾 [7788-99-0] 99.9% 100g 176.00 促销价:123.20
P63978-25g	硫酸铬钾 [7788-99-0]	99.9%	25g	83.00	58.10	登录可见	P63978-25g 硫酸铬钾 [7788-99-0] 99.9% 25g 83.00 促销价:58.10
P63979-500g	硫酸铬钾 [7788-99-0]	99.99%	500g	883.00	573.95	登录可见	P63979-500g 硫酸铬钾 [7788-99-0] 99.99% 500g 883.00 促销价:573.95
P63970-100g	硫酸铬钾 [7788-99-0]	99.99%	100g	350.00	245.00	登录可见	P63970-100g 硫酸铬钾 [7788-99-0] 99.99% 100g 350.00 促销价:245.00
P63976-25g	硫酸铬钾 [7788-99-0]	99.99%	25g	150.00	105.00	登录可见	P63976-25g 硫酸铬钾 [7788-99-0] 99.99% 25g 150.00 促销价:105.00
P63971-5g	硫酸铬钾 [7788-99-0]	99.99%	5g	53.00	37.10	登录可见	P63971-5g 硫酸铬钾 [7788-99-0] 99.99% 5g 53.00 促销价:37.10
P63970-500g	硫酸铬钾 [7788-99-0]	ACS	500g	113.00	84.75	登录可见	P63970-500g 硫酸铬钾 [7788-99-0] ACS 500g 113.00 促销价:84.75
P63972-500g	硫酸铬钾 [7788-99-0]	AR	500g	75.00	47.25	登录可见	P63972-500g 硫酸铬钾 [7788-99-0] AR 500g 75.00 促销价:47.25
P63974-100g	硫酸铬钾 [7788-99-0]	AR	100g	33.00	20.79	登录可见	P63974-100g 硫酸铬钾 [7788-99-0] AR 100g 33.00 促销价:20.79
P63978-500g	硫酸铬钾 [7788-99-0]	GR	500g	113.00	71.19	登录可见	P63978-500g 硫酸铬钾 [7788-99-0] GR 500g 113.00 促销价:71.19
P63972-100g	硫酸铬钾 [7788-99-0]	PT	100g	136.00	102.00	登录可见	P63972-100g 硫酸铬钾 [7788-99-0] PT 100g 136.00 促销价:102.00
P63971-25g	硫酸铬钾 [7788-99-0]	SP	25g	126.00	94.50	登录可见	P63971-25g 硫酸铬钾 [7788-99-0] SP 25g 126.00 促销价:94.50

化学性质

紫色或紫红色等轴晶系八面体结晶，易制成大颗粒结晶。溶于水、稀酸，不溶于醇。熔点 89 °C(lit.) 密度 1.83 水溶解性 24 g/100 mL (15 oC)

质量标准

/(HG)SJ766-1998 HG3-916-76

ACS级
项目名称　　　　                     ACS Grade
含量Assay                                    98.0-102.0%
氯化物(Cl)Chloride                   ≤0.002%
铝(Al)Aluminum                         ≤0.02%
铁(Fe)Iron                                     ≤0.01%
铵盐(NH₄)Ammonium               ≤0.01%
重金属(以Pb计)Heavy                 ≤0.01%

项目ltem                                             分析纯　　　　　　化学纯
　　　　　　　　　　　　             (AR)              (CP)
含量Assay,%                                       ≥99.5              99.0
水不溶物lnsoluble matter in water,%  ≤0.005             0.01
氯化物(Cl)Chloride,%                        ≤0.002             0.005
铵盐(NH₄),%                                        ≤0.01              0.03
铝(AL)ALuminum,%                           ≤0.02              0.05
铁(Fe)Iron,%                                       ≤0.005             0.02
重金属(以Pb计)Heavy metals,%         ≤0.002             0.01

99.99% metals basis:

外观Appearance                          White Powder
X-射线衍射X-Ray Diffraction             Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities
ICP Major Analysis                      Confirms Chromium component
痕量金属杂质total metallic impurities   ≤100ppm by ICP Atomic emission

危险性质

毒性分级中毒
危险品标志 Xi
危险类别码 36/38
安全说明 22-24/25-37/39-26
WGK Germany 2
RTECS号 GB6850000
急性毒性静脉- 小鼠 LD50: 112 毫克/公斤
可燃性危险特性不可燃烧; 火场产生有毒含铬化物, 氧化钾和硫氧化物烟雾
储运特性库房低温, 通风, 干燥
灭火剂水, 二氧化碳, 干粉, 砂土
职业标准 TWA 0.5 毫克(铬)/立方米