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Product Identification
Product Name2-Hydroxy-2,2-diphenylacetic acid
SynonymsDiphenylglycolic acid
CAS76-93-7
FormulaC14H12O3
Molecular Weight228.25
EINECS200-993-2
RTECSDD2064000
RTECS ClassDrug
Merck13,1080
Beilstein/Gmelin521402
Beilstein Reference4-10-00-01256

Physical and Chemical Properties
AppearanceWhite powder.
Solubility in waterVery soluble
Melting Point150 - 152
Boiling Point409
Vapor Pressure2E-7 (25)
pKa/pKb3.04 (pKa)
Partition Coefficient3.03
Heat Of Vaporization69.7 kJ/mol
UsageUsed in organic synthesis, as a base point for preparation of glycollate pharmaceuticals and some hallucinogenic drugs.

First Aid Measures
IngestionIf victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
InhalationRemove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
SkinGet medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
EyesFlush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage
StorageKeep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
HandlingWash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification
IngestionMay cause irritation of the digestive tract.
InhalationMay cause respiratory tract irritation.
SkinMay cause skin irritation.
EyesMay cause eye irritation.
EC Risk PhraseR 22
EC Safety PhraseS 22 36/37

Exposure Controls/Personal Protection
Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety ggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
RespiratorsFollow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Fire Fighting Measures
Flash Point215
Fire FightingWear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Accidental Release Measures
Small spills/leaksClean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity
Disposal Code4
StabilityStable under normal temperatures and pressures.
IncompatibilitiesStrong oxidizing agents.
DecompositionCarbon monoxide, irritating and toxic fumes and gases, carbon dioxide, acrid smoke and fumes.

Transport Information
HS Code2918 19 80

ữ޹˾ ICP08005370 ֧֣ǵ