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Bromocresol green

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Bromocresol green Basic information

Product Name:
Bromocresol green
CAS:
76-60-8
MF:
C21H14Br4O5S
MW:
698.01
EINECS:
200-972-8
Mol File:
76-60-8.mol
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Bromocresol green Chemical Properties

Melting point:
225 °C
Density 
0.79 g/mL at 20 °C
Flash point:
12 °C
storage temp. 
Store at RT.
solubility 
Solubility Sparingly soluble in water; soluble in ethanol, ether, ethyl acetate
form 
Powder/Solid
Boiling point:
626.0±55.0 °C(Predicted)
pka
4.7(at 25℃)
color 
Pale orange
PH
3.8~5.4
PH Range
3.8(YELLOW)-5.4(BLUE)
Water Solubility 
slightly soluble
λmax
423nm, 444nm, 617nm
Merck 
14,1386
BRN 
372527
Stability:
Stable. Incompatible with strong oxidizing agents.
Major Application
Sol-gel matrix, fuel cells, sensors, display device, inks, paints, one-steptester for ammonia, cosmet-tester for ammonia, packaging system, textiles, cleansing products, detergents, cosmetics, diapers, identifying fresh and stale rice, monitoring fish spoilage, detecting carbohydrates, lacting acid bacteria, treating neoplasms, cancer, vaginal infection test method, drugs, dental materials
CAS DataBase Reference
76-60-8(CAS DataBase Reference)
EPA Substance Registry System
Bromcresol green (76-60-8)
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Safety Information

Hazard Codes 
F,Xi,Xn
Risk Statements 
11-36-67-36/37/38-20/21/22
Safety Statements 
7-16-24/25-26-37/39-36
RIDADR 
UN 1219 3/PG 2
WGK Germany 
3
RTECS 
SJ7456000
Autoignition Temperature
399 °C
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29349990

MSDS

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Bromocresol green Usage And Synthesis

Chemical Properties

tan to yellow crystals

Uses

As indicator, pH 3.8 yellow; pH 5.4 blue-green.

Hazard

Moderately toxic.

Purification Methods

Crystallise the dye from glacial acetic acid or dissolve it in aqueous 5% NaHCO3 solution and precipitate it from the hot solution by dropwise addition of aqueous HCl. Repeat this until the UV/VIS-extinction did not increase 423nm. It is an indicator: at pH 3.81 at max (yellow) and pH 5.4 (blue-green). [Beilstein 19/3 V 460.]

Bromocresol green Preparation Products And Raw materials

Preparation Products

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Bromocresol greenSupplierMore

Shenyang Xianchuang Chemical Co., Ltd. Gold
Tel:
024-23769576
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274311108@qq.com
Shanghai Aladdin Bio-Chem Technology Co.,LTD Gold
Tel:
021-20337333-801
Email:
market@aladdin-e.com
Shenyang Shengda Chemical Co., Ltd. Gold
Tel:
024-31968136
Email:
tianmi0406@126.com
Kaiyuan city Shenxin fine chemical co., ltd. Gold
Tel:
18698863499
Email:
1253960@qq.com
Zhejiang Lianshuo Biotechnology Co., Ltd. Gold
Tel:
Email:
lianshuo@vip.126.com
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