ChemicalBook
Chinese Japanese Germany

p-Toluic acid

p-Toluic acid
p-Toluic acid
CAS No.
99-94-5
Chemical Name:
p-Toluic acid
Synonyms
PTLA;p-toluic;p-Toluylsure;P-TOLUIC ACID;4-TOLUIC ACID;P-TOLUYLIC ACID;Crithminic acid;para-Toluic acid;P-ToluicAcid>98%;p-carboxytoluene
CBNumber:
CB7854776
Molecular Formula:
C8H8O2
Formula Weight:
136.15
MOL File:
99-94-5.mol

p-Toluic acid Properties

Melting point:
179 °C
Boiling point:
274-275 °C(lit.)
Density 
1,06 g/cm3
vapor pressure 
0.02 hPa (70 °C)
refractive index 
1.5120 (estimate)
Flash point:
181°C
storage temp. 
Store at RT.
solubility 
0.3g/l
form 
Powder
pka
4.36(at 25℃)
color 
White to slightly yellow-cream
Water Solubility 
<0.1 g/100 mL at 19 ºC
Merck 
14,9535
BRN 
507600
Stability:
Stable. Incompatible with strong oxidizing agents, strong bases.
InChIKey
LPNBBFKOUUSUDB-UHFFFAOYSA-N
CAS DataBase Reference
99-94-5(CAS DataBase Reference)
NIST Chemistry Reference
Benzoic acid, 4-methyl-(99-94-5)
EPA Substance Registry System
Benzoic acid, 4-methyl-(99-94-5)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xn
Risk Statements  22
Safety Statements  22-24/25
WGK Germany  1
RTECS  XU1575000
Autoignition Temperature 570 °C
TSCA  Yes
HS Code  29163900
Toxicity LD50 orally in Rabbit: 400 mg/kg
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

p-Toluic acid price More Price(12)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich T36803 p-Toluic acid 98% 99-94-5 5g $14.4 2018-11-13 Buy
Sigma-Aldrich 41768 p-Toluic acid analytical standard 99-94-5 100mg $77.2 2018-11-13 Buy
TCI Chemical T0293 p-Toluic Acid >98.0%(GC)(T) 99-94-5 25g $16 2018-11-22 Buy
TCI Chemical T0293 p-Toluic Acid >98.0%(GC)(T) 99-94-5 500g $51 2018-11-22 Buy
Alfa Aesar A11506 p-Toluic acid, 98% 99-94-5 250g $36.5 2018-11-13 Buy

p-Toluic acid Chemical Properties,Uses,Production

Chemical Properties

colourless crystals or white crystalline powder. Slightly soluble in water; soluble in alcohol and ether. Combustible.

Uses

Intermediates of Liquid Crystals

Definition

ChEBI: A methylbenzoic acid in which the methyl substituent is located at position 4.

Air & Water Reactions

Fine dust dispensed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust explosion hazard. . Insoluble in water.

Reactivity Profile

p-Toluic acid is a carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in p-Toluic acid to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions. p-Toluic acid is incompatible with strong oxidizers. p-Toluic acid is also incompatible with strong bases. .

Fire Hazard

Flash point data for p-Toluic acid are not available; however, p-Toluic acid is probably combustible.

Purification Methods

Crystallise the acid from water, water/EtOH (1:1), MeOH/water or *benzene. [Beilstein 9 IV 1724.] Aromatic acid impurities (to <0.05%) can be removed via the (±)--methylbenzylamine salt as described for 2,4-dichlorobenzoic acid [Ley & Yates Organic Process Research & Development 12 120 2008]. The S-benzylisothiuronium salt has m 164o (from aqueous EtOH).

p-Toluic acid Preparation Products And Raw materials

Raw materials

Preparation Products


p-Toluic acid Suppliers

Global( 322)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Dalian Richfortune Chemicals Co., Ltd
86-411-84820922, 84821539
86-411-84821380 sales@richfortunechem.com China 362 57
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 sales@capotchem.com China 19958 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 22058 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20795 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com CHINA 1374 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32764 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 1583 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 20001 58
NINGBO INNO PHARMCHEM CO., LTD.
13867897135
sales@nbinno.com CHINA 931 58
Shanghai Boyle Chemical Co., Ltd. Mr Qiu:021-50182298(Demestic market) Miss Xu:021-50180596(Abroad market)
+86-21-57758967 sales@boylechem.com China 2220 55

View Lastest Price from p-Toluic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-20 p-Toluic acid
99-94-5
US $1.00 / kg 1kg 98%min 1000kg career henan chemical co

p-Toluic acid Spectrum


99-94-5(p-Toluic acid)Related Search:


Copyright 2017 © ChemicalBook. All rights reserved