| Product name | 2-tert-butylhydroquinone |
|---|
| Product number | - |
|---|---|
| Other names | MTBHQ |
| Identified uses | For industry use only. Food additives |
|---|---|
| Uses advised against | no data available |
| Company | MOLBASE (Shanghai) Biotechnology Co., Ltd. |
|---|---|
| Address | Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road, Xuhui District, Shanghai, China |
| Telephone | +86(21)64956998 |
| Fax | +86(21)54365166 |
| Emergency phone number | +86-400-6021-666 |
|---|---|
| Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
Acute toxicity - Oral, Category 4
Acute toxicity - Dermal, Category 4
Skin irritation, Category 2
Skin sensitization, Category 1
Eye irritation, Category 2
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
2.2 GHS label elements, including precautionary statements| Pictogram(s) |   |
|---|---|
| Signal word | Warning |
| Hazard statement(s) | H302 Harmful if swallowed H312 Harmful in contact with skin H315 Causes skin irritation H317 May cause an allergic skin reaction H319 Causes serious eye irritation H400 Very toxic to aquatic life |
| Precautionary statement(s) | |
| Prevention | 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. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. |
| Response | P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/…if you feel unwell. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P312 Call a POISON CENTER/doctor/…if you feel unwell. P321 Specific treatment (see ... on this label). P362+P364 Take off contaminated clothing and wash it before reuse. P332+P313 If skin irritation occurs: Get medical advice/attention. P333+P313 If skin irritation or rash occurs: Get medical advice/attention. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P337+P313 If eye irritation persists: Get medical advice/attention. P391 Collect spillage. |
| Storage | none |
| Disposal | P501 Dispose of contents/container to ... |
none
3.Composition/information on ingredients 3.1 Substances| Chemical name | Common names and synonyms | CAS number | EC number | Concentration |
|---|---|---|---|---|
| 2-tert-butylhydroquinone | 2-tert-butylhydroquinone | 1948-33-0 | none | 100% |
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaledIf breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contactWash off with soap and plenty of water. Consult a physician.
In case of eye contactRinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
If swallowedNever give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
4.2 Most important symptoms/effects, acute and delayedSYMPTOMS: Symptoms of exposure to this compound include irritation of the skin and eyes and dermatitis. Delayed symptoms may include lung poisoning. If aspirated into the lungs, chemical pneumonia may occur. ACUTE/CHRONIC HAZARDS: This compound is toxic by ingestion. When heated to decomposition it emits acrid smoke, irritating fumes and toxic fumes of carbon monoxide and carbon dioxide.
4.3 Indication of immediate medical attention and special treatment needed, if necessary/SRP:/ 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 if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the 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. /Poisons A and B/
5.Fire-fighting measures 5.1 Extinguishing media Suitable extinguishing mediaSuitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
5.2 Specific hazards arising from the chemicalThis chemical is combustible.
5.3 Special protective actions for fire-fightersWear self-contained breathing apparatus for firefighting if necessary.
6.Accidental release measures 6.1 Personal precautions, protective equipment and emergency proceduresUse 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 precautionsPrevent 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 upACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. Environmental precautions: Do not let product enter drains. 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.
7.Handling and storage 7.1 Precautions for safe handlingAvoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilitiesKeep container tightly closed in a dry and well-ventilated place.
8.Exposure controls/personal protection 8.1 Control parameters Occupational Exposure limit valuesno data available
Biological limit valuesno data available
8.2 Appropriate engineering controlsHandle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
8.3 Individual protection measures, such as personal protective equipment (PPE) Eye/face protectionSafety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protectionWear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's 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. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Respiratory protectionWear dust mask when handling large quantities.
Thermal hazardsno data available
9.Physical and chemical properties| Physical state | tan powder |
|---|---|
| Colour | White to light tan crystalline powder or a fine beige powder |
| Odour | Very slight aromatic odor |
| Melting point/ freezing point | 234°C(lit.) |
| Boiling point or initial boiling point and boiling range | 73°C |
| Flammability | no data available |
| Lower and upper explosion limit / flammability limit | no data available |
| Flash point | 171°C |
| Auto-ignition temperature | 457.22°C |
| Decomposition temperature | no data available |
| pH | pH = 4.56 at 25°C of a 1% solution of 2-tert-butylhydroquinone |
| Kinematic viscosity | no data available |
| Solubility | less than 1 mg/mL at 18.89°C |
| Partition coefficient n-octanol/water (log value) | log Kow = 2.94 (est) |
| Vapour pressure | 0.001mmHg at 25°C |
| Density and/or relative density | 295 |
| Relative vapour density | 5.73 (Relative to Air) |
| Particle characteristics | no data available |
no data available
10.2 Chemical stabilityStable under recommended storage conditions.
10.3 Possibility of hazardous reactionsPhenols, such as TERT-BUTYLHYDROQUINONE, do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has pKa = 9.88). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases. Such heating may initiate polymerization of the organic compound. Phenols are sulfonated very readily (for example, by concentrated sulfuric acid at room temperature). The reactions generate heat. Phenols are also nitrated very rapidly, even by dilute nitric acid. Nitrated phenols often explode when heated. Many of them form metal salts that tend toward detonation by rather mild shock. This chemical is incompatible with oxidizers.
10.4 Conditions to avoidno data available
10.5 Incompatible materialsIncompatible materials: Strong oxidizing agents, strong bases
10.6 Hazardous decomposition productsWhen heated to decomposition it emits acrid smoke and irritating fumes.
11.Toxicological information Acute toxicity- Oral: LD50 Rat (male) oral 951 mg/kg bw
- Inhalation: LC50 Rat inhalation 2900 mg/cu m/4 hr
- Dermal: no data available
no data available
Serious eye damage/irritationno data available
Respiratory or skin sensitizationno data available
Germ cell mutagenicityno data available
Carcinogenicityno data available
Reproductive toxicityno data available
STOT-single exposureno data available
STOT-repeated exposureno data available
Aspiration hazardno data available
12.Ecological information 12.1 Toxicity- Toxicity to fish: LC50; Species: Lepomis macrochirus (Bluegill) juvenile, length 39 (37-42) mm, weight 1.03 (0.97-1.09) g; Conditions: freshwater, static, 17.0°C (16.3-17.4°C), pH 8.0 (7.3-8.7), hardness 146 mg/L CaCO3 (136-156 mg/L CaCO3), alkalinity 109 mg/L CaCO3 (98-120 mg/L CaCO3), dissolved oxygen 8.3 mg/L (6.0-11.2 mg/L); Concentration: 150 ug/L for 48 hr (95% confidence interval: 140-160 ug/L) /formulation
- Toxicity to daphnia and other aquatic invertebrates: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
AEROBIC: Biodegradation data specific to t-butylhydroquinone in soil and water were not available(SRC, 2016). However, the analogous compound t-butylphenol was found to be not readily biodegradable in the Japanese MITI test (OECD Guideline 302C, 0% degradation in 4 weeks) and in CO2 Evolution tests (OECD Guideline 301B, 0-14% in 28 days)(1,2). t-Butylphenol was also found to be not inherently biodegradable in the Zahn-Wellens test (OECD Guideline 302B)(2). The biodegradation results for t-butylphenol suggest that t-butylhydroquinone is not readily biodegradable(SRC).
12.3 Bioaccumulative potentialAn estimated BCF of 24 was calculated in fish for t-butylhydroquinone(SRC), using an estimated log Kow of 2.94(1) and a regression-derived equation(1). According to a classification scheme(2), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
12.4 Mobility in soilUsing a structure estimation method based on molecular connectivity indices(1), the Koc of t-butylhydroquinone can be estimated to be 1690(SRC). According to a classification scheme(2), this estimated Koc value suggests that t-butylhydroquinone is expected to have low mobility in soil.
12.5 Other adverse effectsno data available
13.Disposal considerations 13.1 Disposal methods ProductThe 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.
Contaminated packagingContainers 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.
14.Transport information 14.1 UN Number| ADR/RID: Not dangerous goods. | IMDG: Not dangerous goods. | IATA: Not dangerous goods. |
| ADR/RID: unknown |
| IMDG: unknown |
| IATA: unknown |
| ADR/RID: Not dangerous goods. | IMDG: Not dangerous goods. | IATA: Not dangerous goods. |
| ADR/RID: Not dangerous goods. | IMDG: Not dangerous goods. | IATA: Not dangerous goods. |
| ADR/RID: yes | IMDG: yes | IATA: yes |
no data available
14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Codeno data available
15.Regulatory information 15.1 Safety, health and environmental regulations specific for the product in question| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| 2-tert-butylhydroquinone | 2-tert-butylhydroquinone | 1948-33-0 | none |
| European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
| EC Inventory | Listed. | ||
| United States Toxic Substances Control Act (TSCA) Inventory | Listed. | ||
| China Catalog of Hazardous chemicals 2015 | Not Listed. | ||
| New Zealand Inventory of Chemicals (NZIoC) | Listed. | ||
| Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Listed. | ||
| Vietnam National Chemical Inventory | Listed. | ||
| Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Listed. | ||
| Creation Date | Aug 11, 2017 |
|---|---|
| Revision Date | Aug 11, 2017 |
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/
购物车
获取报价
投诉建议
0
