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Talc Structure

Talc

Chemical Properties

Melting point 800 °C
Density  2.7-2.8
vapor pressure  0Pa at 25℃
storage temp.  Sealed in dry,Room Temperature
solubility  Practically insoluble in water, in ethanol (96 per cent) and in dilute solutions of acids and alkali hydroxides.
form  Powder/Solid
color  White to pale gray
Odor at 100.00?%. odorless
Water Solubility  Insoluble in water, cold acids, alkalies.
Merck  14,9037
Exposure limits ACGIH: TWA 2 mg/m3
NIOSH: IDLH 1000 mg/m3; TWA 2 mg/m3
InChIKey FPAFDBFIGPHWGO-UHFFFAOYSA-N
LogP -9.4 at 25℃
FDA 21 CFR 73.1550; 182.70; 182.90; 310.545
Substances Added to Food (formerly EAFUS) TALC
SCOGS (Select Committee on GRAS Substances) Talc (basic magnesium silicate)
EWG's Food Scores 1-5
FDA UNII 7SEV7J4R1U
NCI Dictionary of Cancer Terms talc
NCI Drug Dictionary talc
IARC (Vol. 42, Sup 7) 1987, 3 (Vol. 42, Sup 7, 93) 2010, 2B (Vol. 93) 2010
EPA Substance Registry System Talc (14807-96-6)
Cosmetics Info Talc

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H332
Precautionary statements P261-P271-P304+P340-P312a
Hazard Codes  Xn
Risk Statements  20-37
Safety Statements  36
OEB B
OEL TWA: 2 mg/m3 (resp)
WGK Germany  -
RTECS  WW2710000
TSCA  Yes
HS Code  25262020
Hazardous Substances Data 14807-96-6(Hazardous Substances Data)
Toxicity 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
NFPA 704:
0
2 0

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Talc Chemical Properties,Usage,Production

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