hydroquinone tech/photo grade & catechol |
General:
Synonyms:hydroquinol, quinol, p-benzenediol, 1,4-benzenediol, p-dihydroxybenzene,, p-hydroxyphenol, 1,4-dihydroxybenzene, dihydroquinone,
Molecula formula: C6H6O2;
CAS No.:123-31-9;
EINECS No: 204-617-8;
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Physical date:
Appearance:off-white powder or white needle-like crystals;
Melting point:172 C;
Boiling point:286 C;
Density(g cm-3):1.33;
Flash point:165 Degree C;
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Stability::
Stable. Combustible. Incompatible with strong oxidizing agents. strong bases. Light and air-sensitive.
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Toxicology:
Probable carcinogen. Toxic. Severe skin irritant. Harmful by inhalation and ingestion. May cause sensitization. Eye and respiratory irritant.
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Toxicity data:
(The meaning of any abbreviations which appear in this section is given here)
ORL-HMN LDLO 29 mg kg-1;
ORL-RAT LD50 320 mg kg-1;
IPR-RBT LD50 125 mg kg-1;
SKN-MAM LD50 5970 mg kg-1;
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Rish phrases:
(The meaning of any risk phrases which appear in this section is given here.)
R20 R22.
.R20 Harmful by inhalation.
.R21 Harmful in contact with skin.
.R22 Harmful if swallowed.
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Transport information:
(The meaning of any UN hazard codes which appear in this section is given here.)
CGD UK Major hazard class:6.1.Packing group:III
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Personal protection:
Safety glasses, gloves, adequate ventilation. Treat as a potential carcinogen.
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Safety phrases:
(The meaning of any safety phrases which appear in this section is given here.)
S24 S25 S39
.S24 Avoid contact with shin.
.S25 Avoid contact with eyes.
.S39 Wear eye/face protection.
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This information was last updated on September 2, 2003. We have tried to make it as accurate and useful as possible, but can take no responsibility for its use, misuse, or accuracy. We have not verified this information, and cannot guarantee that it is up-to-date.
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Safety (MSDS) data for catechol |
General:
Synonyms:o-dihydroxybenzene, o-benzenediol, 1,2-benzenediol, catechin, 1,2-dihydroxybenzene, o-hydroxyphenol, 2-hydroxyphenol, oxyphenic acid, phthalhydroxquinone, C.I. 76500, C.I.oxidation base 26, pelagol grey c, pyrocatechin ;
Molecular formula:C6H6O2;
CAS No:120-80-9;
EC No:2004-427-5;
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Physical data:
Description:colorless monoclinic crystal;
Molecular formula:C6H6O2;
Molecular weight:110.11;
Specific gravity:1.37;
Male capacity:0.14KJ.mol-1.K-1;
Melting point:104-105 degree C;
Boiling point:246 degree C;
Flashing point:127 degree C;
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Stability:
Stable. Substances to be avoided include acid chlorides, acid anhydrides, bases, oxidising agents, nitric acid. Light sensitive; may discolour on exposure to air. combustible.
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Toxicology:
corrosive, causes burns. Harmful by inhalation, ingestion and through skin absorption. Readily absorbed through skin. Very destructive of mucous membranes and upper respiratory tract, eyes and skin. Target organs: CNS, kidneys, liver.
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Toxicity data
(The meaning of any abbreviations which appear in this section is given here.)
ORL-RAT LD50 260 mg kg-1;
ORL-MUS LD50 260 mg kg-1;
SKN-RBT LD50 800 mg kg-1;
ORL-GPG LD50 210 mg kg-1;
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Risk phrases:
(The meaning of any risk phrases which appear in this section is given here.)
R21 R22 R36 R38:
.R21 Harmful in contact with skin.
.R22 Harmful if swallowed.
.R36 Irritating to eyes.
.R38 Irritating to skin.
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Transport information:
(The meaning of any UN hazard codes which appear in this section is given here.)
UN No.2811. Packing group II. Major hazard class 6.1. transport category 2.
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Personal protection:
Safety glasses. Suitable ventilation.
safety phrases:
(The meaning of any safety phrases which appear in this section is given here.)
S22 S26 S37:
.S22 Do not breathe dust.
.S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
.S37 Wear suitable gloves.
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This information was last updated on September 4, 2003. Although we have tried to make it as accurate and useful as possible, we can take no responsibility for its use or misuse.
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