Ammonium thiocyanate

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。