MDL：
MFCD00149925

Molecular Formula：
K2CO3?3/2H2O

Molecular Weight：
165.23

Product order：

Name	Specifications	Packing	Price	Delivery
Potassium carbonate crystal	AR	500g	RMB 49.5	Consulting service
Potassium carbonate crystal	CP	500g	RMB 41.8	Consulting service
Potassium carbonate crystal	GR	500g	RMB 22	Consulting service
Potassium carbonate crystal	SP	25g	RMB 60.5	Consulting service
Potassium carbonate crystal	4N	25g	RMB 22	Consulting service
Potassium carbonate crystal	ACS	500g	RMB 93.5	Consulting service

Character：
無色結(jié)晶或白色顆粒。有吸濕性。當(dāng)含有充分水分后(16.36%)不吸濕。易溶于水，幾乎不溶于乙醇。水溶液呈強(qiáng)堿性。有刺激性。
密度:2.043

Quality Standard：
Q/(GH)SJ476-92
項(xiàng)目ltem                                 分析純　　　　　化學(xué)純
　　　　　　　　　　　　　　　　　　　    (AR)            (CP)
含量(K2CO3?3/2H2O)Assay,%                 99.0～100.2　　 98.0～100.5
水不溶物lnsoluble matter in water,%     ≤0.005           0.02
氯化物及氯酸鹽(以Cl計(jì))Chloride  and
chlotate,%                              ≤0.001           0.005
硫化合物(以SO4計(jì))Sulfur compounds,%     ≤0.002           0.005
氮化合物(N)Nitrogen compounds,%         ≤0.005           0.005
磷酸鹽(PO4)Phosphate,%                  ≤0.003           0.01
硅酸鹽及氨沉淀物Silicate and substan-
ces precipitatde by ammonia solution,%  ≤0.005           0.003
鈣及鎂(Ca+Mg)Calcium and magnesium,%    ≤0.01            0.05
鐵(Fe)Iron,%                            ≤0.0005          0.001
砷(As)Arsenic,%                         ≤0.00003         0.00003
重金屬(以Pb計(jì))Heavy metals,%            ≤0.0003          0.0003

ACS級
項(xiàng)目名稱　                             ACS Grade
含量(K2CO3?3/2H2O)Assay                 98.5-101.0%
干燥失重(285℃)Loss on heating at 285℃ 14.0-16.5%
水不溶物 Insoluble matter               ≤0.01%
氯化物(Cl)Chloride                      ≤0.003%
磷酸鹽(PO4)Phosphate                    ≤0.001%
二氧化硅(以SiO2計(jì))Silica                ≤0.005%
硫化合物(以SO4計(jì))Sulfur compounds       ≤0.004%
重金屬(以Pb計(jì))Heavy metals              ≤5ppm
鐵(Fe)Iron                              ≤5ppm
鈣(Ca)Calcium                           ≤0.005%
鎂(Mg)Magnesium                         ≤0.002%
鈉(Na)Sodium                            ≤0.02%

Storage：
密封保存。
用作分析試劑。鉀鹽制備。