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75-98-9

75-98-9 Structure

75-98-9 Structure
IdentificationMore
[Name]

Pivalic acid
[CAS]

75-98-9
[Synonyms]

2,2-DIMETHYLPROPANOIC ACID
2,2-DIMETHYLPROPIONIC ACID
ALPHA,ALPHA-DIMETHYLPROPIONIC ACID
CARBOXYLIC ACID C5
NEOPENTANOIC ACID
PIVALIC ACID
RARECHEM AL BO 0076
TRIMETHYLACETIC ACID
2,2,2-Trimethylaceticacid
2,2-dimethyl-propanoicaci
2,2-dimethyl-propionicaci
2,2-Dimethylpropionsαure
2,3-Dimethylpropionsαure
Acetic acid, trimethyl-
acidepivalique
Dimethylpropionic acid
Kyselina 2,2-dimethylpropionova
Kyselina pivalova
kyselina2,2-dimethylpropionova
kyselinapivalova
[EINECS(EC#)]

200-922-5
[Molecular Formula]

C5H10O2
[MDL Number]

MFCD00004194
[Molecular Weight]

102.13
[MOL File]

75-98-9.mol
Chemical PropertiesBack Directory
[Appearance]

white crystalline low melting mass
[mp ]

32-35 °C(lit.)
[bp ]

163-164 °C(lit.)
[density ]

0.889 g/mL at 25 °C(lit.)
[vapor density ]

3.6 (vs air)
[vapor pressure ]

9.75 mm Hg ( 60 °C)
[refractive index ]

1.393
[Fp ]

147 °F
[storage temp. ]

2-8°C
[Water Solubility ]

25 g/L (20 ºC)
[Merck ]

14,7511
[BRN ]

969480
[CAS DataBase Reference]

75-98-9(CAS DataBase Reference)
[NIST Chemistry Reference]

Pivalic acid(75-98-9)
[EPA Substance Registry System]

75-98-9(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

C
[Risk Statements ]

R21/22:Harmful in contact with skin and if swallowed .
R34:Causes burns.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
[RIDADR ]

UN 3261 8/PG 2
[WGK Germany ]

1
[RTECS ]

TO7700000
[HazardClass ]

8
[PackingGroup ]

II
[HS Code ]

29159000
[Safety Profile]

Moderately toxic by ingestion and skin contact. Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits acrid smoke and irritating fumes.
[Hazardous Substances Data]

75-98-9(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
【Raw materials】

Chloroform-->Formic acid-->CARBON MONOXIDE-->ISOBUTYLENE-->2-Methyl-1-propanol-->2-Chloro-2-methylpropane-->TRIMETHYLACETONITRILE
【Preparation Products】

Pivaloyl chloride-->Clomazone-->2-tert-Butylpyridine-4-carboxylic acid ,97%-->3-(3-METHOXYPHENYL)PROPIONIC ACID-->2-TERT-BUTYLPYRIDINE-4-CARBONITRILE-->3-(2,2-DIMETHYL-PROPIONYLAMINO)-ISONICOTINIC ACID-->tert-Butyl peroxypivalate-->3-CHLORO-2,2-DIMETHYLPROPIONIC ACID-->3,3-Dimethyl-2-oxobutyric acid-->Tetrahydro-4H-pyran-4-one-->BIS(TERT-BUTYLCARBONYLOXY)IODOBENZENE 97-->1,1-DIBROMOPINACOLONE-->2,2-DIMETHYL-3-HEXANONE-->2-AMINO-5-TERT-BUTYL-1,3,4-THIADIAZOLE-->2,2-Dimethylpropionic acid hydrazide-->Neopentylamine-->CENTIFOLYL
Hazard InformationBack Directory
[General Description]

TRIMETHYLACETIC ACID(75-98-9) is a colored crystalline solid of low toxicity that is soluble in water, ethyl alcohol and diethyl ether.
[Reactivity Profile]

TRIMETHYLACETIC 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 TRIMETHYLACETIC 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.
[Air & Water Reactions]

With mixing, water soluble.
[Health Hazard]

CALL FOR MEDICAL AID. SOLID: Irritating to eyes and skin. Harmful if swallowed. IF IN EYES OR ON SKIN, flush with running water for at least 15 minutes; hold eyelids open if necessary. Wash skin with soap and water. Remove and isolate contaminated clothing and shoes at the site. If SWALLOWED and victim is UNCONSCIOUS OR HAVING CONVULSIONS, do nothing except keep victim warm. Because of low volatility, it is relatively harmless when inhaled at normal ambient temperature (around 20°C). It is slightly toxic by ingestion or skin absorption. The vapor is irritating at elevated temperatures. Can cause considerable discomfort by oral routes; may cause reversible or irreversible changes to exposed tissue, not permanent injury or death.
[Fire Hazard]

COMBUSTIBLE. Produces vapors irritating to eyes and skin. Decomposes to produce acrid smoke and fumes.
Spectrum DetailBack Directory
[Spectrum Detail]

Pivalic acid(75-98-9) 13C NMR
Pivalic acid(75-98-9) IR2
Pivalic acid(75-98-9) MS
Pivalic acid(75-98-9) 1H NMR
Pivalic acid(75-98-9) Raman
Pivalic acid(75-98-9) IR1
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Trimethylacetic acid, 99%(75-98-9)
[Alfa Aesar]

Trimethylacetic acid, 99%(75-98-9)
[Sigma Aldrich]

75-98-9(sigmaaldrich)
[TCI AMERICA]

Pivalic Acid,>99.0%(GC)(75-98-9)
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