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32638-88-3

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Product FOB Price Min.Order Supply Ability Supplier
Pyrogallol sulfonphthalein
Cas No: 32638-88-3
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Hangzhou Dayangchem Co., Ltd. Contact Supplier
Pyrogallol sulfonphthalein
Cas No: 32638-88-3
USD $ 100.0-100.0 / Kilogram 1 Kilogram 1-1000 Metric Ton/Month Metric Ton/Day Zibo Hangyu Import&Export Co., Ltd Contact Supplier
TIANFUCHEM--High purity PYROGALLOL RED factory price
Cas No: 32638-88-3
USD $ 20.0-20.0 / Metric Ton 1 Metric Ton 20 Metric Ton/Day Henan Tianfu Chemical Co., Ltd. Contact Supplier
Pyrogallo
Cas No: 32638-88-3
No Data 1 Gram No Data Hangzhou Share Chemical Co., Ltd Contact Supplier
Pyrogallol sulfonphthalein
Cas No: 32638-88-3
No Data No Data No Data Kono Chem Co.,Ltd Contact Supplier
ETHYL RED
Cas No: 32638-88-3
No Data No Data No Data Henan Allgreen Chemical Co.,Ltd Contact Supplier
Pyrogallol sulfonphthalein
Cas No: 32638-88-3
No Data No Data No Data Hangzhou J&H Chemical Co., Ltd. Contact Supplier
Pyrogallol sulfonphthalein
Cas No: 32638-88-3
No Data No Data No Data Antimex Chemical Limied Contact Supplier
Pyrogallic Acid
Cas No: 32638-88-3
No Data No Data No Data Hangzhou Ocean Chemical Co., Ltd. Contact Supplier
Amadis Chemical offer CAS#32638-88-3;CAT#A875564
Cas No: 32638-88-3
No Data No Data No Data Amadis Chemical Co., Ltd. Contact Supplier

32638-88-3 Usage

Chemical Properties

dark brown powder

Chemical Properties

Also know nas pyrogallol and 1,2,3-trihydroxy-benzene,C6H3(OH)3 is white,lustrous crystals that turn gray on exposure to light. It is soluble in water,alcohol,and ether. A solution of pyrogallol acquires a brown color on exposure to air. This absorption of oxygen and change of color take place rapidly when the solution is made alkaline. Derivation is by heating gallic acid in an autoclave with three times its weight of water.
Uses are as a protective colloid in preparation of metallic colloidal solutions, photography, dyes, intermediates, synthetic drugs, medicine (antibacterial), process engraving, laboratory reagent, gas analysis (an oxygen absorber), reducing agent, and antioxidant in lubricating oils.

Purification Methods

It is recrystallised from aqueous alkaline solution (Na2CO3 or NaOH) by precipitation on acidification, filter it off and dry in a vacuum. [Suk Collect Czech Chem Commun 31 3127 1966, Beilstein 19 H 407, 19 II 417, 19 III/IV 599, 19/10 V 226.]
InChI:InChI=1/C9H12N2O.C6H6O3/c1-11(2)9(12)10-8-6-4-3-5-7-8;7-4-2-1-3-5(8)6(4)9/h3-7H,1-2H3,(H,10,12);1-3,7-9H

32638-88-3 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Sigma (P8759)  PyrogallolRed   32638-88-3 P8759-5G 1,432.08CNY Detail
Alfa Aesar (L09681)  Pyrogallol Red    32638-88-3 10g 871.0CNY Detail
Alfa Aesar (L09681)  Pyrogallol Red    32638-88-3 2g 243.0CNY Detail

32638-88-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name pyrogallolsulfonephthalein

1.2 Other means of identification

Product number -
Other names Pyrogallol Red

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:32638-88-3 SDS

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