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Ammonium thiocyanate

Cas:
1762-95-4
Molecular Structure:
MDL:
MFCD00011428
Molecular Formula:
CH4N2S;NH4SCN
Molecular Weight:
76.12
Alias:
硫氰化铵 Ammonium sulfocyanate Ammonium rhodanide
Product order:
Name Specifications Packing Price Delivery
Ammonium thiocyanate AR 500g RMB 55 Consulting service
Ammonium thiocyanate CP 500g RMB 55 Consulting service
Ammonium thiocyanate GR,99% 500g RMB 66 Consulting service
Ammonium thiocyanate ACS 500g RMB 88 Consulting service
Ammonium thiocyanate 99.99% 25g RMB 209 Consulting service
Ammonium thiocyanate 99.99% 100g RMB 759 Consulting service
Ammonium thiocyanate 99.99% 500g RMB 3267 Consulting service
Character:
无色结晶。易潮解,极毒,切忌入口。易溶于水和乙醇。其水溶液遇铁盐溶液呈血红色,遇亚铁盐则无反应。将干燥品热到150℃时不分解而熔融,热至170℃时部分转变为硫脲。
Quality Standard:
GB/T 660-92
项目Item                                        分析纯     化学纯
                                                 (AR)       (CP)
含量(NH4SCN)Assay,%                            ≥ 98.5      98.0
pH(50g/L溶液,25℃)                             4.5-6.0  4.5-6.0
澄清度试验Clarity                                 合格      合格
水不溶物Insoluble matter in water,%            ≤ 0.005     0.01
灼烧残渣(以硫酸盐计)Ignition residue,%         ≤ 0.01      0.02
氯化物(Cl)Chloride,%                           ≤ 0.005     0.01
硫化物(S)Sulfide                               ≤ 0.001     0.002
硫酸盐(SO4)Sulfate,%                          ≤ 0.005     0.02
铁(Fe)Iron,%                                   ≤ 0.0001    0.0003
铜(Cu)Copper,%                                 ≤ 0.0005    0.001
铅(Pb)Lead,%                                   ≤ 0.0005    0.001
还原碘的物质(以I计)Substances reducing iodine,%≤ 0.05      0.1


ACS级
项目名称Item                                   ACS Grade
含量Assay                                      ≥97.5%
5%溶液25℃的pH值pH of a 5% solution at 25℃)   4.5-6.0
不溶物Insoluble matter                         ≤0.005%
灼烧残渣Residue after ignition                 ≤0.025%
氯化物(Cl)Chloride(Cl)                         ≤0.005%
硫酸盐(SO4)Sulfate                             ≤0.005%
重金属(以Pb计)Heavy metals(as Pb)              ≤5ppm
铁(Fe)Iron(Fe)                                 ≤0.0003%
还原碘的物质(以I计)Iodine-consuming substances ≤0.004meq/g


99.99%:

外观Appearance                          白色至无色结晶
纯度Purity                              ≥99.99% Based On Trace Metals Analysis by ICP and Atomic Absorption
ICP Assay                               Confirms Sulfur component
不溶物insolubles                        ≤0.005%  
灼烧残渣Ignition residue                ≤0.025%
pH range                                4.5 - 6.0
氯chloride (Cl-):                       ≤0.005%
硫酸根sulfate (SO42-):                  ≤0.005%
铁Fe:                                   ≤3 ppm
重金属heavy metals:                     ≤5 ppm
痕量金属分析Trace Metal Analysis        ≤200.0 ppm by ICP Atomic emission
(Al、Ca、Fe、Mg)
痕量金属分析Trace Metal Analysis        ≤200.0 ppm Atomic Absorption
(Li、Na、K、Rb、Cs) 

Storage:
密封阴凉处保存。
检定和测定微量铁,测定银和汞等,聚合催化剂,抗菌素的分离,分析农药含量,水质分析,配制硫氰酸根和标准溶液。
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