ACTIVITY: Insecticide
(Inorganic)
Structure:
Regulatory
Information
(only comprehensive for the US) |
US
EPA Registered: |
No |
US
EPA PC Code: |
075304 |
Other
Information |
Molecular
Formula: |
F6-Si.Mg
(MgSiF6)
INORGANIC |
Other
Names: |
Farmoz
X-Lice Washdown
Instant wetting sheep dip
Magnesium
hexafluorosilicate
Magnesium
hexafluorosilicate(2-)
Magnesium silicofluoride
Magnesiumfluosilicate
Fluosilicate de magnesium [French]
Fluosilicic acid magnesium salt
Hexafluorosilicate(2-) magnesium (1:1)
Silicon fluoride magnesium salt
Silicate(2-),
hexafluoro-, magnesium (1:1)
|
Of
special interest: |
PAN
Data |
Material
Safety Data Sheet: Farmoz
X-Lice Washdown; Instant wetting sheep dip |
October
2002 - Guidelines
for producing EU eco-label wool
If
lice are present, use an OP off-shears backliner; OP or magnesium
fluorosilicate dip no later than 2-3 weeks after shearing.
If an IGR backliner is used, eco-label
eligibility will have to be foregone.
Ref:
Factsheet. Guidelines
for producing European eco-label and nil residue wool.
Western Australia Department of Agriculture.
Also available at http://www.agric.wa.gov.au/agency/pubns/factsheets/2001/fs02801.pdf |
Uses:
Sheep dip;
Used as a moothrproofer in the US
(manufactured by Herters Inc.,
Waseca MN) from 1968-1989 |
Adverse
Effects:
As
of February 2005: very little data available |
Related
Chemicals for Ammonium fluosilicate on silica gel
Ref: Pesticide Action Network (PAN) |
CAS No. |
Relation |
Chemical Name |
PAN
& FAN data |
Some
Notes from FAN: |
16893-85-9 |
Parent
* |
Sodium
fluosilicate |
PAN
FAN |
US
EPA List 3 inert
Registered
in:
Australia, Canada, India, South Africa, Tanzania, Vietnam
UK:
Cancelled
|
16919-19-0 |
Related
(1) |
Ammonium
fluosilicate |
PAN
FAN |
US
EPA List 3 inert
SYN:
Ammonium silicofluoride |
62449-69-8 |
Related
(1) |
Ammonium
fluosilicate on silica gel |
PAN
FAN |
SYN:
Barium hexafluorosilicate |
17125-80-3 |
Related
(1) |
Barium
fluosilicate |
PAN
FAN |
Registered
in:
India
EU:
Not allowed to be used as an active ingredient after July
25, 2003
SYN:
Barium hexafluorosilicate |
12062-24-7 |
Related
(1) |
Cupric
fluosilicate |
PAN
FAN |
SYN:
Copper silicofluoride,
Cupric hexafluorosilicate |
1327-43-1 |
Related
(1) |
Magnesium
aluminum fluosilicate |
PAN
FAN |
US
EPA List 3 inert |
16949-65-8 |
Related
(1) |
Magnesium
fluosilicate |
PAN
|
- |
53404-77-6 |
Related
(1) |
Sodium
aluminum fluosilicate |
PAN
FAN |
- |
16871-71-9 |
Related
(1) |
Zinc
fluosilicate |
PAN
FAN |
PAN
Bad Actor Chemical:
Developmental or Reproductive Toxin
SYN:
Zinc silicofluoride |
Explanation
from PAN: |
*
Parent: Compounds labeled with a "P" are the parent
compound of the group. The parent chemical was chosen on the
basis of available toxicity information, where chemicals with
the maximum amount of toxicity information assigned to parent
status. Where no toxicity information was available for any
member of a group, we assigned parent status to the least
derivatized member of the group for organic compounds (e.g.,
benzoic acid would be the parent instead of methyl benzoate),
the sodium salt (for compounds with a common anion), or the
chloride salt (for compounds with a common cation). These
are general guidelines and not hard and fast rules, because
the groups are rarely so easy to categorize. For some groups
with no obvious parent, assignment of parent status was arbitrary. |
Group
1: Salts, esters and/or complexes of the parent chemical,
e.g., glyphosate and glyphosate, isopropylamine salt; 2,4-D
and 2,4-D, butoxyethyl ester. Alternatively, the parent
compound itself is an ester or salt, and related compounds
are other esters or salts.
|
Toxicology
Letters Volume 88 , October 1996,
Pages 53-54
A case of intoxication with household products
containing fluorosilicates
José
M. Torrecill, Rosa Martínez, Emilio Mencías
and Salomé Ballesteros
Servicio
de Información Toxicológica, Instituto Nacional
de Toxicologíca Madrid Spain
Although only a few reports of poisoning by fluosilicates
have lately appeared in literature, 43 accidental cases,
2 of them fatal have been communicated to our center in
the period 1991-1995. One of them is presented here.
A 17-month-year
old girl was admitted to the hospital 60 min after the ingestion
of a probably small amount of floor
polish containing 20% of Mg2SiF6. On admission, she
showed continual vomiting and a crisis of generalyzed muscle
spasms. Hypertonus, arreflexia, hypoesthesia and other signs
of neurological damage were also present. Fluoride has been
associated with a wide variety of neurotoxicity, ranging
from confusion to coma. Shock and coma were significant
aspects of a suicidal case previously reported to our center.
On autopsy edematosous areas in pharynx, larynge, trachea
and esophagus compatible with caustic lessions by fluorosilicates
were found. Hypocalcemia that leaded to a ventricular fibrillation
and cardiac arrest was rapidly insatured. Although early
endovenously 10% calcium gluconate were applied, by itself
it does not always prevent arrhythmias. In fact, her condition
continued to deteriorate and 45 minutes after initiation
of the resuscitation measures she died of cardiac failure.
Hyperkaliemia was observed and could be implicated in contributing
to fluoride-induced arrhythmias. Analysis of blood and serum
showed a fluor concentration of 38.4 mg/L and 419 mg/L respectively
far above the lethal level.
The
fatal dose of fluoride has been reported to be 30 mg/kg.
Therefore, the ingestion of a small amount of the floor
polish such as 2 ml can be lethal for a 2-year-old baby.
Due to the riskiness of magnesium
fluorosilicate containing products restrictions in
marketing and sales are justified.
|
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