氟硅酸镁

Magnesium fluorosilicate is a crystalline solid. Decomposes at 120 °C. Contact may cause slight irritation to skin, eyes, and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.

Dry Powder

Solid; [CAMEO] White powder; [Gelest MSDS]

Danger

H301: Toxic if swallowed [Danger Acute toxicity, oral]

P264, P270, P301+P316, P321, P330, P405, and P501 (click each P-code to see the statement)

Danger

H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]

P261, P264, P264+P265, P270, P271, P280, P301+P316, P304+P340, P305+P354+P338, P317, P321, P330, P405, and P501 (click each P-code to see the statement)

Chemical: Silicate(2-), hexafluoro-, magnesium (1:1)

Silicate(2-), hexafluoro-, magnesium (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silicate(2-), hexafluoro-, magnesium (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

REACH registered substance: Magnesium hexafluorosilicate (EC: 241-022-2)

Magnesium hexafluorosilicate: Does not have an individual approval but may be used under an appropriate group standard

Magnesium fluorosilicate: Does not have an individual approval but may be used under an appropriate group standard

Excerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]:

· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Excerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]:

· Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.

Toxic by ingestion; May cause serious eye injury [Classifications by the EC] Not a skin irritant in rabbits (80% aqueous solution); Hematological and clinical chemistry changes, adverse dental effects, mineralization in bone tissue, interstitial nephritis, hyperkeratosis of the stomach, increased relative liver and kidney weights, and increased relative testes and adrenal weights in males observed in 4-week oral study of rats at 3,000 ppm dietary (approximately 300 mg/kg/day); [IUCLID] An eye irritant; Corrosive to mucous membranes; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; May cause osteofluorosis; [Gelest MSDS] See Magnesium. See Fluorosilicic acid. See Calcium hexafluorosilicate.

MAGNESIUM FLUOROSILICATE gives basic aqueous solutions. Reacts with acids. Does not usually react as either oxidizing agents or reducing agents. It can react slowly with water to generate hydrofluoric acid, which can cause severe chemical burns and is one of the few materials that can etch glass.

Magnesium fluorosilicate

UN2853

Div 6.1 Poisonous materials (49 eCFR § 173.132)

PG III: the degree of danger presented by the material is minor

Acute Tox. 3 (100%)

Acute toxicity (ingestion) - category 3

Acute toxicity (Oral) - Category 3

Acute toxicity (Oral) - Category 3

Acute Tox. 3 *

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.

Excerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]:

General First Aid:

· Wear positive pressure self-contained breathing apparatus (SCBA).

Biological Exposure Indices (BEI) [ACGIH] - Fluorides in urine = 2 mg/L prior to shift or 3 mg/L at end of shift; (Repeated measurements recommended.)

1.0 [mg/m3], inhalable fraction, as F[German Research Foundation (DFG)]

Excerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]:

Immediate precautionary measure

Used for mothproofing textiles; [Merck Index] Used to make other chemicals; [CAMEO]

Textiles (Printing, Dyeing, or Finishing) [Category: Industry]

Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing)

Silicate(2-), hexafluoro-, magnesium (1:1): ACTIVE