Name | 4,4'-Biphenol |
Synonyms | PPDP p,p-Diphenol 4,4-Biphenol p,p-Biphenol 4,4'-Biphenol 4,4-Biphenyldiol Biphenyl-4,4-diol 4,4-Dihydroxybiphenyl 4,4'-Dihydroxybiphenyl 4,4-Dihydroxy Diphenyl |
CAS | 92-88-6 |
EINECS | 202-200-5 |
InChI | InChI=1/C12H10O2/c13-11-5-1-9(2-6-11)10-3-7-12(14)8-4-10/h1-8,13-14H |
Molecular Formula | C12H10O2 |
Molar Mass | 186.21 |
Density | 1.22 |
Melting Point | 278-283℃ |
Boling Point | 280.69°C (rough estimate) |
Water Solubility | sparingly soluble |
Solubility | Easily soluble in ether, ethanol, ethyl acetate, acetone and sodium hydroxide, insoluble in gasoline, carbon tetrachloride and water |
Appearance | Shape Powder, color Off-white to light beige or light gray |
pKa | 9.74±0.26(Predicted) |
Storage Condition | Sealed in dry,Room Temperature |
Sensitive | Sensitive to light |
Refractive Index | 1.6010 (estimate) |
MDL | MFCD00002348 |
Physical and Chemical Properties | melting point 278-283°C water-soluble sparingly soluble |
Use | Used as rubber and latex antioxidant, can be used for light-colored rubber products, food packaging glue and medical latex products |
Hazard Symbols | Xn - Harmful |
Risk Codes | R21 - Harmful in contact with skin R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S24/25 - Avoid contact with skin and eyes. |
UN IDs | 3077 |
WGK Germany | 2 |
RTECS | DV4725000 |
TSCA | Yes |
HS Code | 29061900 |
Hazard Class | 9 |
Packing Group | III |
Toxicity | LD50 orl-rat: 9850 mg/kg TXAPA9 28,313,74 |
Reference Show more | 1. Liang Hongxuan, Liu Xinxin, Bai Jialei, et al. Detection of three kinds of hormone pollutants by aptamer fluorescence sensor based on multi-color upconversion nanomaterials [J]. Journal of Preventive Medicine of PLA, 2020(2). 2. Li Qifeng, Ren Shuyue, Wang Yu, Bai Jialei, Peng Yuan, Ning Baoan, Lu Quan-jun, Gao Zhixian. Efficient detection of environmental estrogens bisphenol A and estradiol based on AuNP-AuNP-UCNP triplet sensing system [J]. Journal of Analytical Chemistry, 2018,46(04):486-492. 3. LI et al Qiao-Feng [IF = 1.134]. "Effective Detection of Environmental Estrogens Bisphenol A and Estradiol By Sensing System Based on AuNP-AuNP-UCNP Triple Structure." Chinese J Anal Chem. 2018 Apr;46:486 |
Nature:
1. It is a white to light yellow crystalline solid with a high melting point and stability.
2. Slightly soluble in water, but easily soluble in various organic solvents such as ethanol, ether, and benzene.
3. Stable at room temperature with certain thermal stability.
Usage:
1. It is an important intermediate of polymer compounds, which can be used for synthesizing resins such as polyester and polyamide, and for producing coatings, adhesives, etc.
2. Can be used as a catalyst and reducing agent in organic synthesis.
3. It can also serve as an intermediate in fields such as dyes and optical materials.
Method:
There are many preparation methods, and one commonly used method is synthesis through substitution reactions. For example, 4,4 '- dihydroxybiphenyl can be obtained through a reduction reaction using o-nitrophenol and o-nitrophenylresorcinol as raw materials.
Security information:
1. Irritating to eyes and skin, safety precautions should be taken during use to avoid contact.
2. During storage and handling, attention should also be paid to fire and explosion prevention.
3. If accidental contact or ingestion occurs, seek medical attention immediately.
Introduction
4,4 & prime;-Biphenedicol is white scaly crystal or crystalline powder. It is a polymer intermediate with high melting boiling point and strong heat resistance. It can be used as rubber antioxidant and plastic antioxidant, petroleum product stabilizer, etc.
application
4,4 & prime;-Bifediol is widely used in the chemical industry to prepare engineering composite materials with excellent performance due to its good heat resistance, no pollution, anti-oxidation and anti-aging effects. Modified monomers such as polyester, polyurethane, polyphenylene sulfone, epoxy resin, etc., as well as rubber and latex, especially light-colored vulcanized rubber products, food packaging adhesives and medical latex products; in addition, 4,4 & prime;-Biphenyldiphenol can also be used as a dye intermediate, can synthesize photosensitive materials, etc.
category
Toxic substances
Toxicity classification
Highly toxic
Acute toxicity
abdominal cavity-mouse LD50: 100 mg/kg; Oral administration-rat LD50: 9850 mg/kg
flammability hazard characteristics
Combustible; combustion produces stimulating smoke
storage and transportation features
The warehouse is ventilated and dry at low temperature; stored separately from food ingredients
Fire extinguishing agent
Dry powder, foam, sand, carbon dioxide, mist water
BRN | 1908886 |
NIST chemical information | p,p'-Biphenol(92-88-6) |
EPA chemical information | 4,4'-Biphenyldiol (92-88-6) |