Talg (Mg3H2(SiO3)4)
Bezeichnung:Talg (Mg3H2(SiO3)4)
CAS-Nr14807-96-6
Englisch Name:Talc
CBNumberCB5853119
Summenformel3MgO.4O2Si.H2O
Molgewicht379.263
MOL-Datei14807-96-6.mol
Synonyma
Talg (Mg3H2(SiO3)4)
Magnesiumsilikat, hydratisiert
Talkum
Talg (Mg3H2(SiO3)4) physikalisch-chemischer Eigenschaften
Schmelzpunkt | 800 °C |
Dichte | 2.7-2.8 |
Dampfdruck | 0Pa at 25℃ |
storage temp. | Sealed in dry,Room Temperature |
Löslichkeit | Practically insoluble in water, in ethanol (96 per cent) and in dilute solutions of acids and alkali hydroxides. |
Aggregatzustand | Powder/Solid |
Farbe | White to pale gray |
Geruch (Odor) | at 100.00?%. odorless |
Wasserlöslichkeit | Insoluble in water, cold acids, alkalies. |
Merck | 14,9037 |
Expositionsgrenzwerte | ACGIH: TWA 2 mg/m3 NIOSH: IDLH 1000 mg/m3; TWA 2 mg/m3 |
InChIKey | FPAFDBFIGPHWGO-UHFFFAOYSA-N |
LogP | -9.4 at 25℃ |
IARC | (Vol. 42, Sup 7) 1987, 3 (Vol. 42, Sup 7, 93) 2010, 2B (Vol. 93) 2010 |
EPA chemische Informationen | Talc (14807-96-6) |
Kennzeichnung gefährlicher | Xn |
R-Sätze: | 20-37 |
S-Sätze: | 36 |
WGK Germany | - |
RTECS-Nr. | WW2710000 |
TSCA | Yes |
HS Code | 25262020 |
Giftige Stoffe Daten | 14807-96-6(Hazardous Substances Data) |
Toxizität | A finely powdered hydrous magnesium silicate. It is used in a variety of industrial processes and products, including rubber, paints, lubricants, insulating materials, cosmetics, and toiletries, such as baby and dusting powders. Acute inhalation of large quantities of talc, such as infants aspirating a massive amount of powder, has caused death within hours because of drying of the mucous membranes, clogging of the smaller airways, pulmonary edema and pneumonia. Chronic inhalation of talc, such as occurs in talc miners, leads to talcosis (a pneumoconiosis) involving pulmonary fibrosis and pleural sclerosis. Lymph nodes can also be affected. There are suggestions that talc can result in cervical or ovarian cancer although evidence for this is not extensive. Some talc is contaminated with asbestos. |
IDLA | 1,000 mg/m3 |
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