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Hydroquinone

Item number	687734
CAS	123-31-9
Formula	C6H6O2
Molecular weight	110,11 g/mol
Quantity	1X250MG
storage conditions	20 °C
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Hydroquinone		687734 123-31-9	1X250MG	Please log in.

Safety Data Sheet	according to Regulation (EC) No 1907/2006 (REACH) Classifications according to Regulation (EC) No 1272/2008. Printdate 27.11.2024
IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING
Product name:	Hydroquinone
Catalog No.:	687734
Relevant identified uses of the substance or mixture	Identified: Laboratory chemical uses: R&D
Uses advised against:	HPC Standards GmbH Am Wieseneck 7 04451 Cunnersdorf Deutschland Tel. +49 34291 3372-36 Fax. +49 34291 3372-39 contact@hpc-standards.com
Emergency telephone number	HPC Standards Tel. +49 34291 3372-36 This number is only available during office hours.
HAZARDS IDENTIFICATION	2.1 Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 Acute toxicity, Oral (Category 4), H302 Serious eye damage (Category 1), H318 Skin sensitisation (Category 1), H317 Germ cell mutagenicity (Category 2), H341 Carcinogenicity (Category 2), H351 Acute aquatic toxicity (Category 1), H400 Chronic aquatic toxicity (Category 1), H410 Classification according to EU Directives 67/548/EEC or 1999/45/EC R40 R68 Xn Harmful R22 Xi Irritant R41 R43 N Dangerous for the environment R50
Label elements
Pictogram	GHS05 acid acid GHS07 exclam exclam GHS08 silhouete silhouete GHS09 Aquatic-pollut-red Aquatic-pollut-red
	2.2 Label elements Labelling according Regulation (EC) No 1272/2008 Pictogram Signal word Danger Hazard statement(s) H302 Harmful if swallowed. H317 May cause an allergic skin reaction. H318 Causes serious eye damage. H341 Suspected of causing genetic defects. H351 Suspected of causing cancer. H410 Very toxic to aquatic life with long lasting effects. Precautionary statement(s) P273 Avoid release to the environment. P280 Wear protective gloves/ eye protection/ face protection. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P501 Dispose of contents/ container to an approved waste disposal plant. Supplemental Hazard Statements none 2.3 Other hazards This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
COMPOSITION/INFORMATION ON INGREDIENTS	3.1 Substances Synonyms : 1,4-Benzenediol 1,4-Dihydroxybenzene Formula : C6H6O2 Molecular weight : 110,11 g/mol CAS-No. : 123-31-9 EC-No. : 204-617-8 Index-No. : 604-005-00-4 Hazardous ingredients according to Regulation (EC) No 1272/2008 Component Classification Concentration Hydroquinone CAS-No. EC-No. Index-No. 123-31-9 204-617-8 604-005-00-4 Acute Tox. 4; Eye Dam. 1; Skin Sens. 1; Muta. 2; Carc. 2; Aquatic Acute 1; Aquatic Chronic 1; H302, H317, H318, H341, H351, H410 <= 100 % Hazardous ingredients according to Directive 1999/45/EC Component Classification Concentration Hydroquinone CAS-No. EC-No. Index-No. 123-31-9 204-617-8 604-005-00-4 Xn, N, Carc.Cat.3, Mut.Cat.3, R22 - R40 - R41 - R43 - R68 - R50 <= 100 %
Formula	C6H6O2
Molecular Weight (g/mol)	110.11
CAS-No.	123-31-9
FIRST AID MEASURES	4.1 Description of first aid measures General advice Consult a physician. Show this safety data sheet to the doctor in attendance. If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. 4.2 Most important symptoms and effects, both acute and delayed The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11 4.3 Indication of any immediate medical attention and special treatment needed No data available
FIRE-FIGHTING MEASURES	5.1 Extinguishing media Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. 5.2 Special hazards arising from the substance or mixture Carbon oxides 5.3 Advice for firefighters Wear self-contained breathing apparatus for firefighting if necessary. 5.4 Further information No data available
ACCIDENTAL RELEASE MEASURES	6.1 Personal precautions, protective equipment and emergency procedures Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. 6.2 Environmental precautions Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. 6.3 Methods and materials for containment and cleaning up Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal. 6.4 Reference to other sections For disposal see section 13.
HANDLING AND STORAGE	7.1 Precautions for safe handling Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. 7.2 Conditions for safe storage, including any incompatibilities Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Air and light sensitive. Storage class (TRGS 510): Non Combustible Solids 7.3 Specific end use(s) Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
EXPOSURE CONTROLS/PERSONAL PROTECTION	8.1 Control parameters Components with workplace control parameters 8.2 Exposure controls Appropriate engineering controls Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Personal protective equipment Eye/face protection Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching gloves outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. Body Protection Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Respiratory protection Where risk assessment shows air-purifying respirators are appropriate use a full-face particle respirator type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Control of environmental exposure Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided
PHYSICAL AND CHEMICAL PROPERTIES	9.1 Information on basic physical and chemical properties a) Appearance Form: crystalline Colour: colourless b) Odour No data available c) Odour Threshold No data available d) pH 3,7 at 70 g/l e) Melting point/freezing point Melting point/range: 172 - 175 °C - lit. f) Initial boiling point and boiling range 285 °C - lit. g) Flash point 165 °C - closed cup h) Evaporation rate No data available i) Flammability (solid, gas) No data available j) Upper/lower flammability or explosive limits No data available k) Vapour pressure 1 hPa at 132 °C l) Vapour density 3,80 - (Air = 1.0) m) Relative density 1,332 g/cm3 n) Water solubility 50 g/l o) Partition coefficient: noctanol/ water log Pow: 0,59 p) Auto-ignition temperature 515,56 °C q) Decomposition temperature No data available r) Viscosity No data available s) Explosive properties No data available t) Oxidizing properties No data available 9.2 Other safety information Bulk density 550 - 650 kg/m3 Solubility in other solvents Methanol Diethylether Relative vapour density 3,80 - (Air = 1.0)
STABILITY AND REACTIVITY	10.1 Reactivity No data available 10.2 Chemical stability Stable under recommended storage conditions 10.3 Possibility of hazardous reactions No data available 10.4 Conditions to avoid Air Light. 10.5 Incompatible materials Strong bases, Strong oxidizing agents 10.6 Hazardous decomposition products Other decomposition products - No data available In the event of fire: see section 5
TOXICOLOGICAL INFORMATION	11.1 Information on toxicological effects Acute toxicity LD50 Oral - Rat - 367,3 mg/kg (OECD Test Guideline 401) LD50 Dermal - Rabbit - > 2.000 mg/kg (OECD Test Guideline 402) Skin corrosion/irritation No data available Serious eye damage/eye irritation Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2) Respiratory or skin sensitisation in vivo assay - Mouse Result: May cause sensitisation by skin contact. May cause allergic skin reaction. (OECD Test Guideline 429) Germ cell mutagenicity Laboratory experiments have shown mutagenic effects. In vitro tests showed mutagenic effects DNA repair Rat - Liver cells Result: negative Mutagenicity (micronucleus test) Mouse Result: positive Carcinogenicity This product is or contains a component that has been reported to be possibly carcinogenic based on its IARC, ACGIH, NTP, or EPA classification. Limited evidence of carcinogenicity in animal studies IARC: 3 - Group 3: Not classifiable as to its carcinogenicity to humans (Hydroquinone) Reproductive toxicity No data available Specific target organ toxicity - single exposure No data available Specific target organ toxicity - repeated exposure No data available Aspiration hazard No data available Additional Information RTECS: MX3500000 Absorption into the body leads to the formation of methemoglobin which in sufficient concentration causes cyanosis. Onset may be delayed 2 to 4 hours or longer. To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated. Liver - Irregularities - Based on Human Evidence
ECOLOGICAL INFORMATION	12.1 Toxicity Toxicity to fish LC50 - Oncorhynchus mykiss (rainbow trout) - 0,04 - 0,1 mg/l - 96,0 h Toxicity to daphnia and other aquatic invertebrates EC50 - Daphnia magna (Water flea) - 0,13 mg/l - 48 h Toxicity to algae EC50 - Pseudokirchneriella subcapitata (green algae) - 0,335 mg/l - 72 h 12.2 Persistence and degradability Biodegradability Biotic/Aerobic - Exposure time 14 d Result: 86 % - Readily biodegradable 12.3 Bioaccumulative potential Bioaccumulation Leuciscus idus (Golden orfe) - 3 d - 50 µg/l Bioconcentration factor (BCF): 40 12.4 Mobility in soil No data available 12.5 Results of PBT and vPvB assessment This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher. 12.6 Other adverse effects Very toxic to aquatic life with long lasting effects
DISPOSAL CONSIDERATIONS	13.1 Waste treatment methods Product Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. Contaminated packaging Dispose of as unused product.
TRANSPORT INFORMATION	14.1 UN number ADR/RID: 3077 IMDG: 3077 IATA: 3077 14.2 UN proper shipping name ADR/RID: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (Hydroquinone) IMDG: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (Hydroquinone) IATA: Environmentally hazardous substance, solid, n.o.s. (Hydroquinone) 14.3 Transport hazard class(es) ADR/RID: 9 IMDG: 9 IATA: 9 14.4 Packaging group ADR/RID: III IMDG: III IATA: III 14.5 Environmental hazards ADR/RID: yes IMDG Marine pollutant: yes IATA: yes 14.6 Special precautions for user Further information EHS-Mark required (ADR 2.2.9.1.10, IMDG code 2.10.3) for single packagings and combination packagings containing inner packagings with Dangerous Goods > 5L for liquids or > 5kg for solids
REGULATORY INFORMATION	This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006. 15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture No data available 15.2 Chemical Safety Assessment For this product a chemical safety assessment was not carried out
OTHER INFORMATION	The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. For lab use only!