Pyrocatechol violet
Molecular Structure:
MDL:
--MFCD00005868
Molecular Formula:
C19H14O7S
Molecular Weight:
386.38
Alias:
兒茶酚紫,鄰苯二酚磺酞
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
Pyrocatechol violet |
IND |
1g |
RMB 198 |
現(xiàn)貨 |
Pyrocatechol violet |
IND |
5g |
RMB 638 |
現(xiàn)貨 |
Character:
紅棕色結(jié)晶粉末。有金屬光澤。易溶于水和含水乙醇,微溶于冷無(wú)水乙醇。不溶于非極性溶劑(如醚、苯、二甲苯),其水溶液呈黃色,當(dāng)酸度增加時(shí)則由黃變紅,其水溶液在pH值1.5~7呈黃色,pH值7~9呈紫色,pH值9~11呈紅紫色。水溶液呈黃色穩(wěn)定,但易被氧化劑氧化。
Quality Standard:
項(xiàng)目ltem 指示劑
(Ind)
水溶解試驗(yàn)Solubility 合格
酸堿靈敏度Sensitivity to aicd alkali 合格
鉍靈敏度Sensitivity to bismuth 合格
灼燒殘?jiān)?以硫酸鹽計(jì))Ignition residue,% ≤ 0.4
PH范圍 PH range 6.5 - 8
Storage:
密封保存。