Name | Resorcinol |
Synonyms | R R-80 resorcin c.i.76505 resorcine C.I. 76505 developerr developero Cohedur RK Resorcinol developerrs Developer R Developer O Developer RS c.i.developer4 Dihydroxybenzol 1,3-benzenediol 3-hydroxyphenol C.I. Developer 4 alpha-resorcinol benzene-1,3-diol m-dihydroxybenzene c.i.oxidationbase31 1,3-dihydroxybenzol 1,3-dihydroxybenzene benzene, m-dihydroxy- 1,3-dihydroxy benzene C.I. Oxidation Base 31 benzene, 1,3-dihydroxy- 3-hydroxycyclohexadien-1-one 1,3-Dihydroxybenzene (resorcinol) |
CAS | 108-46-3 |
EINECS | 203-585-2 |
InChI | InChI=1/C6H6O2/c7-5-2-1-3-6(8)4-5/h1-4,7-8H |
InChIKey | GHMLBKRAJCXXBS-UHFFFAOYSA-N |
Molecular Formula | C6H6O2 |
Molar Mass | 110.11 |
Density | 1.27 |
Melting Point | 109-112°C(lit.) |
Boling Point | 281 °C |
Flash Point | 340°F |
JECFA Number | 712 |
Water Solubility | 140 g/100 mL |
Solubility | H2O: soluble1M at 20°C, clear, faintly yellow |
Vapor Presure | 1 mm Hg ( 21.1 °C) |
Vapor Density | 3.8 (vs air) |
Appearance | Liquid |
Color | white |
Exposure Limit | TLV-TWA 10 ppm (~45 mg/m3) (ACGIH); STEL 20 ppm (ACGIH). |
Merck | 14,8155 |
BRN | 906905 |
pKa | 9.81(at 25℃) |
PH | 4-6 (100g/l, H2O, 20℃) |
Storage Condition | Store below +30°C. |
Stability | Stable. Incompatible with strong oxidizing agents. May discolour on exposure to air or light. |
Sensitive | Light Sensitive |
Explosive Limit | 1.4%(V) |
Refractive Index | 1.5781 |
Physical and Chemical Properties | Character: White needle crystal. Exposure to light and air or contact with iron turns pink and has a sweet taste. melting point 108 ℃ boiling point 280.8 ℃ relative density 1.2717 flash point 127 ℃ soluble in water, ethanol, pentanol, soluble in ether, glycerol, slightly soluble in chloroform, carbon disulfide, slightly soluble in benzene. |
Use | For the photographic film, pharmaceutical, dye and chemical fiber industries |
Risk Codes | R22 - Harmful if swallowed R36/38 - Irritating to eyes and skin. R50 - Very Toxic to aquatic organisms R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R41 - Risk of serious damage to eyes R38 - Irritating to the skin |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S39 - Wear eye / face protection. |
UN IDs | UN 2876 6.1/PG 3 |
WGK Germany | 2 |
RTECS | VG9625000 |
FLUKA BRAND F CODES | 3-8-9-23 |
TSCA | Yes |
HS Code | 2907 21 00 |
Hazard Class | 6.1 |
Packing Group | III |
Toxicity | LD50 orally in Rabbit: 301 mg/kg LD50 dermal Rabbit 3360 mg/kg |
Raw Materials | Benzene Sulfuric acid Sodium hydroxide Hydrochloric acid |
Downstream Products | Mercurochrome |
White needle crystal. It turns pink when exposed to light and air or in contact with iron. Sweet taste. Flammable. Moderate toxicity. Density 1. 2717 (1. 272) g/cm3, melting point 108 ℃. Boiling point 280.8 °c. Flash point 127 °c. Ignition point: 585 ℃. Spontaneous ignition point 607.7. Soluble in water, ethanol, pentanol, soluble in ether, glycerol, chloroform-soluble, carbon disulfide, slightly soluble in benzene.
This product shall be calculated as dry product, and the content of C6H6O2 shall not be less than 99.5%.
The melting point of this product (General 0612) is 109~1116 ℃.
synthetic resin, adhesive, dye (such as acid eosin, etc.), medicine (such as aminosalicylic acid), benzophenone-based UV absorber, photosensitive adhesive sheet base coating, rubber Tire Cord dipping and explosives and other raw materials. It can also be used in cosmetics, tanning, fabric printing and as a reagent for the detection of zinc.
take 0.25g of this product, add 5ml of water to dissolve, slowly heat, no phenol odor.
take 0.50g of this product, Add 10ml of water to dissolve, add 2 drops of dilute acetic acid and 0.5ml of lead acetate test solution, and no turbidity.
take an appropriate amount of this product, add methanol to dissolve and dilute to make a solution containing about 50mg per lml as a test solution; Take 1ml for precision measurement and put it in a 200ml measuring flask, as a control solution, it was diluted to the scale with methanol and shaken. According to the thin layer chromatography (General 0502) test, absorb 1 u1 of each of the above two solutions, respectively point on the same silica gel G thin layer plate, with ethyl acetate-n-hexane (40:60) as the developing solvent, after the development, it was dried and colored in iodine vapor. If the test solution shows impurity spots, the color should not be deeper compared with the main spots of the control solution.
take this product, dry to constant weight in sulfuric acid dryer, weight loss should not exceed 1.0% (General rule 0831).
not more than 0.05% (General rule 0841).
take about 0.15g of this product, accurately weigh it, put it in a 100ml measuring flask, add an appropriate amount of water to dissolve and dilute to the scale, shake well; Take 25ml of precision measurement, put it in an iodine bottle, precision Add 30ml of bromine titration solution (0.05mol/L), then add 50ml of water and 5ml of hydrochloric acid, immediately plug, shake, stand in the dark for 15 minutes, pay attention to open the bottle stopper, add 5ml potassium iodide solution, immediately plug, shake well, in the dark for 15 minutes, with sodium thiosulfate titration solution (0.1 mol/L) titration, to the near end point, add 1ml of starch indicator solution, continue titration to blue disappeared, and the titration result is corrected by blank test. Each 1ml of bromine titration solution (0.05mol/L equivalent to 1.835mg of C6H602.
Disinfection antiseptic.
light shielding, sealed storage.