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Safety Data Sheet EN

Hydroquinone

CAS 123-31-9
EC 204-617-8

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01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
Hydroquinone
Product Code
3586
Chemical Name
Hydroquinone
Synonyms
1,4-Dihydroxybenzene

Regulatory Identifiers

CAS Number
123-31-9 Check regulations →
EC Number
204-617-8 Check regulations →
REACH No.
01-2119524016-51-xxxx

Identified Uses

Laboratory chemical Laboratory and analytical use

Uses advised against

Do not use for products which come into contact with foodstuffs. Do not use for private purposes (household). Food, drink and animal feedingstuffs.

Manufacturers & Suppliers

Carl Roth GmbH + Co. KG logo

Carl Roth GmbH + Co. KG

manufacturer

Schoemperlenstr. 3-5, D-76185 Karlsruhe, Germany

+49 (0) 721 - 56 06 0

http://www.carlroth.de

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified danger

Hazard Classifications

Acute Tox. Cat. 4 H302
Eye Dam. Cat. 1 H318
Skin Sens. Cat. 1 H317
Muta. Cat. 2 H341
Carc. Cat. 2 H351
Aquatic Acute Cat. 1 H400
Aquatic Chronic Cat. 1 H410

GHS Pictograms

GHS05 - Corrosive

GHS05

GHS07 - Health hazard

GHS07

GHS08 - Serious health hazard

GHS08

GHS09 - Environmental hazard

GHS09

Hazard Statements

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 Statements

P273 Avoid release to the environment
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
P301 + P312 IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell
P302 + P352 IF ON SKIN: Wash with plenty of soap and water
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
P333 + P313 If skin irritation or rash occurs: Get medical advice/attention

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03

Composition / Information on Ingredients

Chemical components, concentration ranges, and hazardous substance identification

Type substance
Chemical Name CAS Number Concentration Hazardous
Hydroquinone EC: 204-617-8 123-31-9 --- No
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

Provide fresh air. IF exposed or concerned: Call a doctor.

Symptoms: Cough, pain, choking, and breathing difficulties

Skin contact

Rinse skin with water/shower. In case of skin reactions, consult a physician.

Symptoms: Irritation, Allergic reactions

Eye contact

In case of contact with eyes flush immediately with plenty of flowing water for 10 to 15 minutes holding eyelids apart and consult an ophthalmologist.

Symptoms: Risk of blindness, Corneal opacity, Risk of serious damage to eyes

Ingestion

Rinse mouth with water (only if the person is conscious). In case of accident or unwellness, seek medical advice immediately (show directions for use or safety data sheet if possible).

Symptoms: Vomiting, Diarrhoea

Immediate Medical Attention

In case of skin reactions, consult a physician. In case of contact with eyes, consult an ophthalmologist. In case of accident or unwellness, seek medical advice immediately.

05

Firefighting Measures

Extinguishing media, specific hazards, and firefighter protection

Suitable media

co-ordinate firefighting measures to the fire surroundings! water, foam, alcohol resistant foam, dry extinguishing powder, ABC-powder

Unsuitable media

water jet

Specific hazards

Combustible. Vapours are heavier than air, spread along floors and form explosive mixtures with air.

Instructions

Fight fire with normal precautions from a reasonable distance.

Firefighter Protection

Wear self-contained breathing apparatus.

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

Emergency procedures

Use personal protective equipment as required. Avoid contact with skin, eyes and clothes. Do not breathe dust.

Environmental

Keep away from drains, surface and ground water. Retain contaminated washing water and dispose of it.

Cleanup methods

Take up mechanically.

Related Products

Similar products with comparable safety profiles

07

Handling and Storage

Safe handling precautions, storage conditions, and workplace requirements

Handling

Provision of sufficient ventilation. Avoid exposure. Avoid dust formation.

Storage

Store in a dry place.

Hygiene

Wash hands before breaks and after work. Keep away from food, drink and animal feedingstuffs.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Hands

Wear suitable gloves. Chemical protection gloves are suitable, which are tested according to EN 374. For special purposes, it is recommended to check the resistance to chemicals of the protective gloves mentioned above together with the supplier of these gloves. The times are approximate values from measurements at 22 ° C and permanent contact. Increased temperatures due to heated substances, body heat etc. and a reduction of the effective layer thickness by stretching can lead to a considerable reduction of the breakthrough time. If in doubt, contact manufacturer. At an approx. 1.5 times larger / smaller layer thickness, the respective breakthrough time is doubled / halved. The data apply only to the pure substance. When transferred to substance mixtures, they may only be considered as a guide. Type of material: Butyl caoutchouc (butyl rubber). Material thickness: 0,7 mm. Breakthrough times of the glove material: >480 minutes (permeation: level 6)

Eyes

Use safety goggle with side protection.

Respiratory

Respiratory protection necessary at: Dust formation. Particulate filter device (EN 143). P2 (filters at least 94 % of airborne particles, colour code: White).

Skin/Body

Take recovery periods for skin regeneration. Preventive skin protection (barrier creams/ointments) is recommended.

Environmental

Keep away from drains, surface and ground water.

09

Physical and Chemical Properties

Appearance, physical state, melting point, boiling point, and material characteristics

Physical State
solid
Physical State Data
solid
State Under Standard Conditions
---
Appearance
---
Colour
whitish
Colour Intensity
---
Form
---
Odor
odourless
Odor Threshold
---
Ph
~ 3,8 (in aqueous solution: 70[g] /l, 20 °C)
Melting Point
172,3 °C (ECHA)
Boiling Point
287 °C at 1.013 hPa (ECHA)
Flash Point
165 °C at 1.013 hPa (ECHA)
Freezing Point
---
Softening Point
---
Solidification Point
---
Cloud Point
---
Crystallisation Point
---
Relative Evaporation Rate
---
Evaporation Rate
---
Vapor Pressure
0 hPa at 25 °C
Vapor Density
---
Relative Density
---
Bulk Density
~600[kg] /m³
Density
1,33[g] /cm³ at 15 °C (ECHA)
Flammability
this material is combustible, but will not ignite readily
Upper Explosive Limit
not relevant (solid)
Lower Explosive Limit
not relevant (solid)
Explosive Limits
---
Auto Ignition Temperature
515 °C at 1.013 hPa (ECHA) (relative self-ignition temperature for solids)
Decomposition Temperature
>170 °C
Solubility
---
Partition Coefficient
0,59 (ECHA)
Solubility In Water
71[g] /l at 25 °C (ECHA)
Solubility In Fat
---
Molecular Weight
---
Voc Content
---
Metal Corrosion
---
Dynamic Viscosity
---
Kinematic Viscosity
not relevant
Properties Status
---
10

Stability and Reactivity

Chemical stability, hazardous reactions, and incompatible materials

Stability

The material is stable under normal ambient and anticipated storage and handling conditions of temperature and pressure.

Reactivity

The product in the delivered form is not dust explosion capable; the enrichment of fine dust however leads to the danger of dust explosion.

Hazardous reactions

Exothermic reaction with: strong oxidiser, Alkalis. Danger of explosion: Oxygen. Violent reaction with: Sodium and potassium hydroxide

Avoid

Keep away from heat. Decompostion takes place from temperatures above: >170 °C. Direct light irradiation.

Incompatible

aluminium

Decomposition

Hazardous combustion products: see section 5.

12

Ecological Information

Environmental toxicity, biodegradation, and bioaccumulation data

The data for this section has not been processed yet.

13

Disposal Considerations

Waste treatment methods, disposal recommendations, and waste codes

The data for this section has not been processed yet.

14

Transport Information

UN numbers, shipping names, transport classes, and regulatory requirements

UN Number
3077
Shipping Name
ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.
Transport Class
9
Packing Group
III
15

Regulatory Information

Chemical regulations, safety assessments, and compliance status

The data for this section has not been processed yet.

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Frequently Asked Questions

Common questions about safety, handling, and properties

What other names is Hydroquinone known by?

Hydroquinone is also known as: 1,4-Dihydroxybenzene

What is the hazard signal word for Hydroquinone?

The signal word is danger.

What is the physical form of Hydroquinone?

Hydroquinone is a solid with whitish color. It has odourless odor.

What is Hydroquinone used for?

Laboratory chemical Laboratory and analytical use

What are the hazard statements for Hydroquinone?

This substance has 6 hazard statements:

  • 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

What is the melting point of Hydroquinone?

The melting point is 172,3 °C (ECHA) and the boiling point is 287 °C at 1.013 hPa (ECHA).