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浙江体彩20选5开奖规则:tert-Butylhydroquinone

tert-Butylhydroquinone
tert-Butylhydroquinone structure
CAS No.
1948-33-0
Chemical Name:
tert-Butylhydroquinone
Synonyms
TBHQ;MTBHQ;0.0025;Sustane;NSC 4972;TBHQ,FCC;tenoxtbhq;banox20ba;Tenox tbhq;TERTIARYBHQ
CBNumber:
CB0415105
Molecular Formula:
C10H14O2
Formula Weight:
166.22
MOL File:
1948-33-0.mol

tert-Butylhydroquinone Properties

Melting point:
127-129 °C(lit.)
Boiling point:
295 °C
Density 
295
refractive index 
1.4859 (estimate)
Flash point:
171 °C
storage temp. 
Store below +30°C.
form 
Crystalline Powder
color 
White to light tan, may contain black specs
Water Solubility 
Slightly soluble in water(10g/L).
BRN 
637923
Stability:
Stable. Incompatible with strong bases, strong oxidizing agents.
InChIKey
BGNXCDMCOKJUMV-UHFFFAOYSA-N
CAS DataBase Reference
1948-33-0(CAS DataBase Reference)
NIST Chemistry Reference
1,4-Benzenediol, 2-(1,1-dimethylethyl)-(1948-33-0)
EPA Substance Registry System
1,4-Benzenediol, 2-(1,1-dimethylethyl)-(1948-33-0)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07,GHS09
Signal word  Warning
Hazard statements  H410-H400-H302-H315-H319-H335
Precautionary statements  P280a-P304+P340-P405-P501a-P261-P305+P351+P338-P264-P270-P273-P280-P301+P312+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P391-P501
Hazard Codes  Xn
Risk Statements  22-36/37/38
Safety Statements  26-36-28A
RIDADR  UN3077
WGK Germany  3
RTECS  MX4375000
Autoignition Temperature 855 °F
TSCA  Yes
HazardClass  9
PackingGroup  III
HS Code  29072900

tert-Butylhydroquinone price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 112941 tert-Butylhydroquinone 97% 1948-33-0 5g $28.6 2018-11-13 Buy
Sigma-Aldrich 07293 tert-Butylhydroquinone analytical standard 1948-33-0 100mg $60.2 2018-11-13 Buy
TCI Chemical B0833 tert-Butylhydroquinone >98.0%(GC) 1948-33-0 25g $17 2018-11-22 Buy
TCI Chemical B0833 tert-Butylhydroquinone >98.0%(GC) 1948-33-0 500g $107 2018-11-22 Buy
Alfa Aesar A19206 tert-Butylhydroquinone 97% 1948-33-0 1000g $156 2018-11-20 Buy

tert-Butylhydroquinone Chemical Properties,Uses,Production

Chemical Properties

tan powder

Uses

tert-Butylhydroquinone (TBHQ) is an antioxidant that exhibits an excellent stabilizing effect in unsaturated fats and oils. It has good solubility in fats and oils, with a maximum usage level of 0.02% based on the weight of the fat or oil or the fat content of the food product. It shows no discoloration in the presence of iron and produces no discernible flavor or odor. It can be combined with BHA and BHT. It is used in edible fats and vegetable oils to retard rancidity. It is used in potato chips and dry cereal. It is also termed butylhydroquinone and mono-tertiary-butylhydroquinone.

Definition

ChEBI: A member of the class of hydroquinones in which one of the ring hydrogens of hydroquinone is replaced by a tert-butyl group.

General Description

White to light tan crystalline powder or a fine beige powder. Very slight aromatic odor.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Phenols, such as tert-Butylhydroquinone, do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has Ka = 1.3 x 10^[-10]). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases. Such heating may initiate polymerization of the organic compound. Phenols are sulfonated very readily (for example, by concentrated sulfuric acid at room temperature). The reactions generate heat. Phenols are also nitrated very rapidly, even by dilute nitric acid. Nitrated phenols often explode when heated. Many of them form metal salts that tend toward detonation by rather mild shock. tert-Butylhydroquinone is incompatible with oxidizers.

Fire Hazard

tert-Butylhydroquinone is combustible.

Contact allergens

This antioxidant has seldom been reported as a sensitizer, mainly in cosmetics (lipsticks, lip-gloss, hair dyes) or in cutting oils. Simultaneous/cross-reactions have been described to butylhydroxyanisole (BHA) and less frequently to butylhydroxytoluene (BHT), but not to hydroquinone

Purification Methods

Recrystallise the hydroquinone from H2O or MeOH and dry it in a vacuum at 70o. Store it in a dark container. [Stroh et al. Angew Chem 69 699 1957, Beilstein 6 IV 6013.]

tert-Butylhydroquinone Preparation Products And Raw materials

Raw materials

Preparation Products


tert-Butylhydroquinone Suppliers

Global( 314)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 [email protected] China 1855 55
Tianjin Zhongxin Chemtech Co., Ltd.
022-89880739
022-66880086 [email protected] CHINA 575 58
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 [email protected] China 19918 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
[email protected] CHINA 21799 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 [email protected] CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 [email protected] CHINA 32447 55
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 [email protected] CHINA 24191 60
Shanghai Zheyan Biotech Co., Ltd.
18017610038
[email protected] CHINA 3623 58
career henan chemical co
+86-371-86658258
[email protected] CHINA 30004 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 [email protected];[email protected];[email protected];[email protected] CHINA 23980 58

View Lastest Price from tert-Butylhydroquinone manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-09 tert-Butylhydroquinone
1948-33-0
US $2.00 / KG 1KG 99% Customise career henan chemical co

tert-Butylhydroquinone Spectrum


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