Acute toxicity - Category 4, Oral
Skin irritation, Category 2
Eye irritation, Category 2
H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
none
P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
no data available
Fresh air, rest.
Rinse skin with plenty of water or shower.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth.
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. (USCG, 1999)
Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. Organic acids and related compounds
Powder, alcohol-resistant foam, water spray, carbon dioxide.
COMBUSTIBLE. Produces vapors irritating to eyes and skin. Decomposes to produce acrid smoke and fumes. (USCG, 1999)
Use water spray, powder, alcohol-resistant foam, carbon dioxide.
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb liquid in sand or inert absorbent. If solid: sweep spilled substance into containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. Store and dispose of according to local regulations.
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Collect leaking and spilled liquid in sealable containers as far as possible. If solid: sweep spilled substance into containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
Collect leaking liquid in sealable containers. If solid: sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. (Extra personal protection: A/P2 filter respirator for organic vapour and harmful dust).
NO open flames. Above 64°C use a closed system and ventilation. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Separated from strong oxidants and food and feedstuffs.Separated from strong oxidants, food and feedstuffs.
no data available
no data available
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Wear safety goggles.
Protective gloves.
Use local exhaust.
no data available
Solid. Solid.
Na. (Pt/Co) (Max 50) scale - White solid.
no data available
36 °C. Atm. press.:1 013 hPa.
160 - 162 °C. Atm. press.:1 013 hPa.
Combustible.
no data available
78 °C. Atm. press.:1 013 hPa.
560 °C. Atm. press.:1 013 hPa.
no data available
no data available
kinematic viscosity (in mm2/s) = 1.7. Temperature:60.0°C.
Very soluble in ethanol, ethyl ether
log Pow = < 1. Temperature:20 °C.;log Pow = 1.8. Temperature:20 °C.
0.73 kPa. Temperature:50 °C.;9 kPa. Temperature:100 °C.
0.9 g/cm3. Temperature:40 °C.
3.6 (vs air)
no data available
The solution in water is a weak acid. The substance is a weak base. Reacts violently with strong oxidants. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).
no data available
Combustible.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 it 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.
no data available
no data available
When heated to decomposition it emits acrid smoke and irritating fumes.
no data available
no data available
no data available
no data available
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no data available
The substance is severely irritating to the eyes, skin and upper respiratory tract. The substance is irritating to the gastrointestinal tract.
no data available
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C.
AEROBIC: 2,2-Dimethylpropanoic acid at a high initial concn of 100 ppm exhibited a 24% theoratical BOD over an incubation period of 5 days in an aerobic screening study at 21 deg C using sewage inoculum(1). An aerobic screening study using activated sludge inoculum at pH 7 showed only a small removal of 2,2-dimethylpropanoic acid (high initial concn of 500 ppm) in a Warburg respirometer at pH 7(5). 2,2-Dimethylpropanoic acid exhibited a 10% theoratical BOD over an incubation period of 5 days in an aerobic screening study at 20 deg C using sewage inoculum(2). 2,2-Dimethylpropanoic acid at an initial concn of 3.4 ppm exhibited a 52% theoretical BOD over an incubation period of 10 days in an aerobic screening study at 25 deg C and pH 6.5-7.5 using sewage inoculum(3). 2,2-Dimethylpropanoic acid at an initial concn of 4.1 ppm exhibited 1.2, 0, 14, and 86% theoretical BOD over respective incubation periods of 2, 5, 10, and 20 days in an aerobic screening study at 25 deg C using soil inoculum(4).
The BCF of 2,2-dimethylpropanoic acid was <0.2-1.2 at a concentration of 1 ppb and <2.3 at a concentration of 0.1 ppb using carp (Cypinus carpio) which were exposed over a 6-week period(1). According to a classification scheme(2), these BCFs suggest bioconcentration in aquatic organisms is low(SRC).
The Koc of 2,2-dimethylpropanoic acid is estimated as 150(SRC), using a log Kow of 1.48(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 2,2-dimethylpropanoic acid is expected to have high mobility in soil. The pKa of 2,2-dimethylpropanoic acid is 5.03(4), indicating that this compound will exist partially in anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(5).
no data available
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
ADR/RID: UN3261 (For reference only, please check.)
IMDG: UN3261 (For reference only, please check.)
IATA: UN3261 (For reference only, please check.)
ADR/RID: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S. (For reference only, please check.)
IMDG: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S. (For reference only, please check.)
IATA: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S. (For reference only, please check.)
ADR/RID: 8 (For reference only, please check.)
IMDG: 8 (For reference only, please check.)
IATA: 8 (For reference only, please check.)
ADR/RID: I (For reference only, please check.)
IMDG: I (For reference only, please check.)
IATA: I (For reference only, please check.)
ADR/RID: No
IMDG: No
IATA: No
no data available
no data available