CAS 7790-62-7 MFCD00011385-Potassium disulfate 焦硫酸钾 TAO{mole}

Potassium disulfate 焦硫酸钾

CAS 7790-62-7 MFCD00011385

化学结构图

SMILES: O=S(=O)([O-])OS(=O)(=O)[O-].[K+].[K+]

化学属性

Mol. Formula	K2O7S2
Mol. Weight	254
Density	2.28 g/mL at 25 °C(lit.)
TSCA	Yes
Melting Point	325
Solubility	Soluble in water (25.4 g/l) at 20 °C.
Stability	对湿度敏感
Appearance	焦亚硫酸钾为白色结晶或结晶性粉末，具有二氧化硫的臭气。熔点325℃，易溶于水而不溶于乙醇，具有比较强的还原性。静脉注射小鼠 LD 50 ，以二氧化硫计，为 175mg · － 1 。

别名和识别编码

Chemical Name	Potassium disulfate
CAS Number	7790-62-7
EC Number	232-216-8
Beilstein Registry Number	2384789
MDL Number	MFCD00011385
Synonym	Potassium pyrosulfate, for analysis, 98% 无水重硫酸钾 POTASSIUM PYROSULPHATE POTASSIUM HYDROGEN SULFATE Potassium pyrosulfate, 98%, for analysis 焦硫酸钾 POTASSIUM DISULFATE R. G. Potassiumpyrosulphate,97% Potassium disulfate Disulfuricacid,dipotassiumsalt Potassiumhydrogensulfate,ACS POTASSIUMHYDROGENSULFATE,FUSED,POWDER,REAGENT,ACS Potassium Hydrogen Sulfate, Fused, Powder, Reagent DIPOTASSIUM DISULFATE DI-POTASSIUM DISULPHATE POTASSIUM HYDROGEN SULFATE FUSED, REAGENT (ACS) 硫酸氢钾, ACS PotassiumPyrosulfateK2S2O7 POTASSIUM PYROSULFATE Potassium pyrosulfate: (Disulfuric acid, dipotassium salt) PotassiumPyrosulphateGr POTASSIUM DISULFATE
Merck Number	14,7664
PubChem Substance ID	62681
Chemical Name Translation	焦硫酸钾
LabNetwork Molecule ID	LN00194480
InChI	InChI=1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2

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产品应用

化学分析用酸性溶剂。钢铁分析作电解金属的夹杂剂。

安全信息

Signal word Danger

GHS Symbol

WGK Germany3

Safety Statements

S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护；
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后，立即用大量水冲洗并征求医生意见；
S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible) 发生事故时或感觉不适时，立即求医（可能时出示标签）；
S20 When using do not eat or drink 使用时，不得进食，饮水；
S28 After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) 皮肤接触后，立即用大量…（由生产厂家指定）冲洗；

Risk Statements

R41 Risk of serious damage to eyes 有严重损伤眼睛的危险
R34 Causes burns 会导致灼伤

Precautionary statements

P310 Immediately call a POISON CENTER or doctor/physician. 立即呼救解毒中心或医生/医师。
P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
P305+P351+P338

Hazard statements

H314 Causes severe skin burns and eye damage 导致严重的皮肤灼伤和眼睛损伤

Personal Protective Equipment Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges

Packing GroupII

UN Number UN3262 3260

Storage condition Moisture Sensitive 密封保存。

Hazard Codes C

Hazard Class8

其他信息

图谱信息:焦硫酸钾(7790-62-7)红外图谱(IR1)
有吸湿性。易溶于水，水溶液呈强酸性。商品常为近于70%的焦硫酸钾的30%硫酸氢钾的混合物。
下游产品:丙酮酸
用途一:化学分析上用作酸性溶剂，钢铁分析用作电解金属的夹杂剂
MOL 文件:7790-62-7.mol
焦硫酸钾价格(试剂级):更新日期产品编号产品名称包装价格 2011/08/23 10017760 焦硫酸钾;无水重硫酸钾; 无水酸性硫酸钾 500g 20元 2010/06/21 207910250 焦硫酸钾 Potassium pyrosulfate 98%, for analysis 25 GR 368元 2010/06/21 207915000 焦硫酸钾 Potassium pyrosulfate 98%, for analysis 500 GR 1229元
Alfa Aesar:硫酸氢钾,ACS Potassium hydrogen sulfate, ACS(7790-62-7)
敏感性:Hygroscopic
用途二:化学分析用酸性溶剂。钢铁分析作电解金属的夹杂剂。
Acros Organics:焦硫酸钾 Potassium pyrosulfate, for analysis, 98%(7790-62-7)
上游原料:硫酸 --> 氢氧化钾 --> 硫酸钾
Sigma Aldrich:7790-62-7(sigmaaldrich)