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A6648312

Phthalate , standardforGC,≥99.5%(GC) , 88-99-3

Synonym(s):
1,2-Benzenedicarboxylic acid;Benzene-1,2-dicarboxylic acid;Phthalic acid

CAS NO.:88-99-3

Empirical Formula: C8H6O4

Molecular Weight: 166.13

MDL number: MFCD00002467

EINECS: 201-873-2

Pack Size Price Stock Quantity
5G RMB32.00 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 210-211 °C (dec.) (lit.)
Boiling point: 214.32°C (rough estimate)
Density  1.59 g/cm3 at 15 °C
vapor pressure  7.8 hPa (191 °C)
refractive index  1.5100 (estimate)
Flash point: 168 °C
storage temp.  Store below +30°C.
solubility  methanol: 0.1 g/mL, clear
form  Powder
pka 2.89(at 25℃)
color  White
PH 3.2(1 mM solution);2.55(10 mM solution);2(100 mM solution);
Water Solubility  7 g/L (25 ºC)
Merck  14,7371
BRN  608199
Dielectric constant 5.1(Ambient)
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey XNGIFLGASWRNHJ-UHFFFAOYSA-N
LogP 0.73 at 20℃

Description and Uses

Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(CO2H)2. It is an isomer of isophthalic acid and terephthalic acid. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale.

It is a dibasic acid, with pKa's of 2.89 and 5.51. The mono potassium salt, potassium hydrogen phthalate is a standard acid in analytical chemistry. Typically phthalate esters are prepared from the widely available phthalic anhydride. Reduction of phthalic acid with sodium amalgam in the presence of water gives the 1,3- cyclohexadiene derivative.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  1
RTECS  TH9625000
TSCA  Yes
HS Code  29173980
Toxicity LD50 orally in rats: 7.9 g/kg (Shaffer)

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