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等级
ACS reagent
表单
powder
组成
Dye content, 85%
技术
titration: suitable
颜色
orange
pH值（酸碱度）
3.0-4.4, pink to yellow
visual transition interval
3.2-4.4, red to yellow
mp
>300 °C
λmax
505 nm
应用
diagnostic assay manufacturing
hematology
histology
储存温度
room temp
SMILES字符串
[Na+].CN(C)c1ccc(cc1)\N=N\c2ccc(cc2)S([O-])(=O)=O
InChI
1S/C14H15N3O3S.Na/c1-17(2)13-7-3-11(4-8-13)15-16-12-5-9-14(10-6-12)21(18,19)20;/h3-10H,1-2H3,(H,18,19,20);/q;+1/p-1/b16-15+;
InChI key
STZCRXQWRGQSJD-GEEYTBSJSA-M
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一般描述
甲基橙（C.I.13025）是一种对二甲氨基偶氮苯磺酸的钠盐。它是一种橙色的合成染料，颜色会随着溶液的pH值而变化。在酸性溶液中呈红色，在碱性溶液中呈黄色。
应用
甲基橙可用作细胞汁液的
- pH指示剂
- 在染色花粉管时与结晶紫一起对比染色
- 多色组织学染色方案的组成部分指示剂，
- 例如在草酸和丙二酸的检测中
- 在其他生物医学应用中使用，包括用于薄膜剂量计和溴离子的检测试剂。
生化/生理作用
甲基橙是一种偶氮染料，可用作pH指示剂。
警示用语：
Danger
危险声明
危险分类
Acute Tox. 3 Oral
储存分类代码
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
Encapsulation of methyl orange pH-indicator into a sol-gel matrix.
Zaggout FR, et al.
Materials Letters, 59, 2928-2931 (2005)
Somayeh Mirsadeghi et al.
Journal of environmental management, 270, 110831-110831 (2020-06-09)
A simple biogenic approach for synthesis of Fe3O4/Au nanocomposite with 31 nm size using aqueous extract of Carum carvi L. seeds has been reported. Phytochemicals of Carum carvi L. seeds extract play three roles, including reducing, capping, and stabilizing agents during
Characterization of methyl orange and its photocatalytic degradation products by HPLC/UV?VIS diode array and atmospheric pressure ionization quadrupole ion trap mass spectrometry.
Baiocchi C, et al.
International Journal of Mass Spectrometry, 214, 247-256 (2002)
Jie Ma et al.
ACS applied materials & interfaces, 4(11), 5749-5760 (2012-10-16)
An alkali-acitvated method was explored to synthesize activated carbon nanotubes (CNTs-A) with a high specific surface area (SSA), and a large number of mesopores. The resulting CNTs-A were used as an adsorbent material for removal of anionic and cationic dyes
Soon-An Ong et al.
Environmental science and pollution research international, 20(5), 3405-3413 (2012-11-02)
The objective of this study was to examine the effects of adsorbability and number of sulfonate group on solar photocatalytic degradation of mono azo methyl orange (MO) and diazo Reactive Green 19 (RG19) in single and binary dye solutions. The
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