Safety data for urea

General

    Synonyms: B-I-K, carbamide, carbamide resin, isourea, pseudourea, carbonyldiamine
    Molecular formula: CH4N2O
    CAS No: 57-13-6
    EC No: 200-315-5

     

Physical data

    Appearance: white crystalline powder
    Melting point: 135 - 137C
    Boiling point:
    Specific gravity: 1.335
    Vapour pressure:
    Flash point:
    Explosion limits:
    Autoignition temperature:

     

Stability

    Substances to be avoided include strong oxidizing agents. Protect from moisture.

     

Toxicology

    Harmful by inhalation, ingestion and through skin absorption. Causes eye and skin irritation. Possible mutagen.

    Toxicity data
    (The meaning of any abbreviations which appear in this section is given here.)
    ORL-RAT LD50 8471 mg kg-1
    IPR-RAT LD50 > 5000 mg kg-1
    IVN-RAT LD50 5300 mg kg-1
    IVN-MUS LD50 4600 mg kg-1

    Risk phrases
    (The meaning of any risk phrases which appear in this section is given here.)
    R36 R37 R38 R40.

    • R36 Irritating to eyes.
    • R37 Irritating to respiratory system.
    • R38 Irritating to skin.
    • R40 Possible risk of irreversible effects

     

Personal protection

    Safety glasses. Suitable ventilation.

    Safety phrases
    (The meaning of any safety phrases which appear in this section is given here.)
    S26 S36.

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    • S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
    • S36 Wear suitable protective clothing.

     

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This information was last updated on April 24, 2001. We have tried to make it as accurate and useful as possible, but we can take no responsibility for its use or misuse.

MSDS found in New Jersey Data Base - from Oxford Universityhttp://physchem.ox.ac.uk/MSDS/UR/urea.html