Potassium thiocyanate

MDL：
MFCD00011413

Molecular Formula：
KSCN

Molecular Weight：
97.18

Alias：
硫氰化钾 Potassium sulfocyanate Potassium rhodanide

Product order：

Name	Specifications	Packing	Price	Delivery
Potassium thiocyanate	AR	500g	RMB 88	Consulting service
Potassium thiocyanate	CP	500g	RMB 77	Consulting service
Potassium thiocyanate	GR	500g	RMB 99	Consulting service
Potassium thiocyanate	ACS	500g	RMB 121	Consulting service
Potassium thiocyanate	0.1000mol/L(0.1N)	1L	RMB 429	Consulting service
Potassium thiocyanate	100g/L	1L	Inquiry	Consulting service

Character：
无色结晶。易吸湿结块液化。熔融时变成棕色，以后渐变成绿色，冷却后仍变白色。1g溶于0.5ml丙酮、12ml乙醇、8ml沸乙醇。易溶于水。当溶于自身重量的水时，温度下降约30℃。水溶液呈中性。低毒，半数致死量(大鼠，经口)854mg/kg。
密度:1.89
熔点:1.73℃

Quality Standard：
GB/T648-93
项目ltem                               　　   优级纯      分析纯     化学纯
                                        　　   (GR)        (AR)      (CP)
含量(KSCN),%                         　　    ≥99.0        98.5       98.0
pH(50g/L,25℃)                          　　   5.3-8.5     5.3-8.5    5.3-8.5
澄清度试验Clarity                       　　   合格        合格       合格
水不溶物lnsoluble matter in water,%  　　    ≤0.003       0.005      0.01
氯化物(Cl)Chloride,%                 　　    ≤0.003       0.005      0.01
硫化物(S)Sulfide,%                   　　    ≤0.001       0.001      0.005
硫酸盐(SO4)Sulfale,%                 　　    ≤0.002       0.005      0.02
铵盐(NH4)Ammornium,%                 　　    ≤0.001     　0.002      0.005
钠(Na)Sodium,%                       　　    ≤0.01        0.02         --
铁(Fe)Iron,%                         　　    ≤0.00005     0.0001     0.0002
铜(Cu)Copper,%                       　　    ≤0.0002      0.0005       --
铅(Pb)Lead,%                         　　    ≤0.0002      0.0005     0.001
还原碘的物质Substances reducing iodine,%     ≤0.02        0.025      0.06

ACS级
项目名称　                                                ACS Grade
水不溶物Insoluble matter                                   ≤0.005%
氯化物及氯酸盐(以Cl计)Chlorine and bromide(as Cl)          ≤0.005%
硫酸盐(SO4)Sulfate                                         ≤0.005%
铵盐(NH4)Ammonium                                          ≤0.003%
重金属(以Pb计)Heavy metals                                 ≤5ppm
铁(Fe)Iron                                                 ≤2ppm
钠(Na)Sodium                                               ≤0.005%
碘消耗物Iodine-consuming substances                        passes

Storage：
密封干燥避光保存。
配制硫氰酸盐滴定液。检定三价铁、铜和银。尿液检验。钨显色剂。容量法测定钛的指示剂。致冷剂。照相增厚剂。