PAN Pesticides Database - Chemicals

Fluosilicic acid - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information

Note: See Working with the Information on this Page section below for important notes about this data.

This database and website are updated and enhanced by Pesticide Action Network North America (PANNA). The project is made possible by our Sponsors and by PANNA general funds. We need your support to maintain and improve this system. Please support the database and website — donate to PANNA.

Identifying information, including synonyms, ID numbers, use type, chemical classification, a link to a list of all products containing this chemical and a list of the top crops this pesticide is used on in California.
Signs and symptoms of poisoning, first aid, and links to treatment information for this chemical.
Link to information on toxicity to humans, including carcinogenicity, reproductive and developmental toxicity, neurotoxicity, and acute toxicity.
Links to world-wide registration status as well as regulatory information for the U.S. and California.
Water quality standards and physical properties affecting water contamination potential.
Toxicity to aquatic organisms.
List of chemicals in the same family, including breakdown products, salts, esters, isomers, and other derivatives.
 

Chemical Identification and Use for Fluosilicic acid

Basic Identification Information About This Chemical
Chemical Name: Fluosilicic acid
CAS Number: 16961-83-4
U.S. EPA PC Code: 075305
075303 (Old US EPA PC Code.)
CA DPR Chem Code:
Molecular Weight: 144.1
Use Type:
Chem Class:
View Related Chemicals
 
Additional Resources About This Chemical Class and Use Type
 
Other Names for this Chemical
About Chemical Synonyms
(US EPA PC Code ) , (US EPA PC Code ) , 075303 (Old US EPA PC Code) , 075303 (US EPA PC Code Text ) , 075305 (US EPA PC Code Text ) , 16961-83-4 (CAS number) , 16961834 , 16961834 (CAS number without hyphens) , Corticotropin , Dihydrogen hexafluorosilicate , Fluoro silicic acid , Fluorosilicic acid , Fluosilicic acid , Fluosilicicacid , Hexafluorosilicate(2-), dihydrogen , Hexafluorosilicic acid , Hexafluosilicic acid , Hydrofluosilicic acid , Silicate(2-), hexafluoro-, dihydrogen , Silicofluoric Acid , Use code no. 075305
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Fluosilicic acid Poisoning

NOTE! There may be other diseases and chemicals that have similar symptoms.

If you have a poisoning emergency in the United States call 1-800-222-1222.
If the victim has collapsed or is unconscious, call 911.

Symptoms of Fluosilicic acid Exposure from the International Chemical Safety Cards (ICSC)

Report a Poisoning

View full ICSC Cards: English   Español   Française   Chinese   Dutch   Finnish   German   Hungarian   Japanese   Swahili   Thai   Urdu  
NOTE! AVOID ALL CONTACT!
General First Aid: IN ALL CASES CONSULT A DOCTOR!

Route of Exposure

Symptoms

First Aid

Inhalation Corrosive. Burning sensation. Cough. Shortness of breath. Fresh air rest. Half-upright position. Refer for medical attention.
Skin Corrosive. Pain. Blisters. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Corrosive. Redness. Pain. Severe deep burns. First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion Corrosive. Abdominal cramps. Burning sensation. Vomiting. Rinse mouth. Do NOT induce vomiting. Refer for medical attention.
Notes for ICSC Information
Marketed as aqueous solution only. Density of 61% solution at 25C is 1.46 and density of 30% solution at 17.5C is 1.27. 60-70% solution solidifies at about 19C forming a crystalline dihydrate. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate spray by a doctor or a person authorized by him/her should be considered.
 

Toxicity Information for Fluosilicic acid

  Note: Information for many chemicals is incomplete and may not be fully representative of effects on humans. Why?

Summary Toxicity Information

PAN Bad Actor
Chemical
1
Acute
Toxicity
2
Carcinogen Cholinesterase
Inhibitor
Ground
Water Contaminant
Developmental or
Reproductive Toxin
Endocrine
Disruptor
Not Listed
No
 
Indicates high toxicity in the given toxicological category. Indicates no available weight-of-the-evidence summary assessment. For additional information on toxicity from scientific journals or registration documents, see the "Additional Resources for Toxicity " section of the chemical detail page.
1. PAN Bad Actors are chemicals that are one or more of the following: highly acutely toxic, cholinesterase inhibitor, known/probable carcinogen, known groundwater pollutant or known reproductive or developmental toxicant. NOTE! Because there are no authoritative lists of Endocrine Disrupting (ED) chemicals, EDs are not yet considered PAN Bad Actor chemicals.
2. The acute toxicity reported on this page is of the pure chemical ingredient only and may not reflect the acute toxicity of individual pesticide products. To view acute toxicity of individual products, click on 'View Products' link in the 'Chemical Identification' section above.

Detailed Toxicity Information

This Chemical
Parent Chemical 
Acute Toxicity 2
Fluosilicic acid Sulfuric acid
WHO Acute Hazard
TRI Acute Hazard
Material Safety Data Sheets
Acute rating from U.S. EPA product label
U.S. NTP Acute Toxicity Studies
      View Studies
Cholinesterase Inhibitor
Not Listed
Not Listed
Not Available
No Consensus Value
No NTP Studies

No
Not Listed
Not Listed
Not Available
Highly Toxic
No NTP Studies

No
2. The acute toxicity reported on this page is of the pure chemical ingredient only and may not reflect the acute toxicity of individual pesticide products. To view acute toxicity of individual products, click on 'View Products' link in the 'Chemical Identification' section above.
 
Cancer Information
Fluosilicic acid Sulfuric acid
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
No data available
Not Listed
 
Endocrine Disruption
Fluosilicic acid Sulfuric acid
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
 
Reproductive and Developmental Toxicity
Fluosilicic acid Sulfuric acid
CA Prop 65 Developmental Toxin
U.S. TRI Developmental Toxin
CA Prop 65 Female Reproductive Toxin
CA Prop 65 Male Reproductive Toxin
U.S. TRI Reproductive Toxin
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
 
Chemicals of Special Concern
Fluosilicic acid Sulfuric acid
PAN Bad Actors
PAN Dirty Dozen list
Not Listed
Not Listed
Yes
Not Listed
 

Water Pollution Potential and Criteria for Fluosilicic acid

Water Pollution Potential

This Chemical
Parent Chemical
  Fluosilicic acid Sulfuric acid
PAN Ground Water Contaminant Rating Insufficient Data Insufficient Data
 

Sorry, no water quality standards or criteria have been established for this chemical by the U.S. or Canadian governments; however, there may be criteria established for related chemicals.

 

Regulatory Information for Fluosilicic acid

International Regulatory Status

This Chemical
Parent Chemical 
 
UNEP Persistent Organic Pollutant (POP)
UNEP Prior Informed Consent Chemical (PIC)
WHO Obsolete Pesticide
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
 

U.S. and California Regulatory Status

U.S. EPA Registered
U.S. EPA Hazardous Air Pollutant
U.S. EPA Minimum Risk Pesticide (25b list)

CA Registered
CA Groundwater Contaminant
CA Toxic Air Contaminant
No
Not Listed
No

No
Not Listed
Not Listed
Yes
Not Listed
No

Yes
Not Listed
Not Listed
 

Maximum Tolerance and Residue Levels

Codex Alimentarius
   (UN FAO Maximum Residue Limits)
U.S. Maximum Tolerance Levels
European Union Maximum Residue Levels
Go to web site

Go to web site

Go to web site
 

Ecotoxicity for Fluosilicic acid

Note! Information for many chemicals is incomplete and may not be fully representative of effects on the environment. Why? Click on underlined terms for definitions and additional information.

Aquatic Ecotoxicity

All Toxic Effects for Organism Group
Organism Group Effects Noted
Fish Hormone(s)
View All Aquatic Ecotoxicity Studies and References
 
Summary of Acute Toxicity for Organism Group

Sorry, no acute aquatic ecotoxicity data available for this chemical. Try related chemicals.

 

Terrestrial Ecotoxicity

Summary of Acute Toxicity for Organism Group

Sorry, no honeybee acute toxicity data available for this chemical. Try related chemicals.

Note: Population-level effects on honeybees may occur even if a pesticide has low acute toxicity. For example, certain pesticides interfere with honeybee reproduction, ability to navigate, or temperature regulation, any of which can have an effect on long-term survival of honeybee colonies. The neonicotinoids, pyrethroids and keto-enol pesticides are some types of pesticides causing one or more of these effects.
Honeybee Chronic Toxicity

Sorry, no honeybee chronic toxicity data available for this chemical. Try related chemicals.

Related Chemicals for Fluosilicic acid

CAS Number Relation Reason Chemical Name Chem Detail Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
7664-93-9 Parent P Sulfuric acid View View View Herbicide, Dessicant, Fungicide, Microbiocide, pH Adjustment Yes Yes
16961-83-4 Related 7 Fluosilicic acid View View View No Not Listed
10034-85-2 Related 7 Hydriodic acid View View View No Not Listed
7664-39-3 Related 7 Hydrofluoric acid View View View No Not Listed
7647-01-0 Related 7 Hydrogen chloride View View View Fumigant, Fungicide, Nematicide, pH Adjustment, Herbicide Yes Not Listed
7697-37-2 Related 7 Nitric acid View View View No Not Listed
7664-38-2 Related 7 Phosphoric acid View View View Fungicide, pH Adjustment, Herbicide, Microbiocide Yes Not Listed
7646-93-7 Related 7 Potassium bisulfate View View View pH Adjustment, Fungicide, Herbicide, Microbiocide No Not Listed
7681-38-1 Related 7 Sodium bisulfate View View View pH Adjustment, Fungicide, Herbicide, Microbiocide Yes Yes
Related P Strong Inorganic Acid Mists Containing Sulfuric Acid View View View Water treatment No Yes
 
Working with the Information on this Page

Click on underlined terms for definitions or go to the Pesticide Tutorial overview page.

Any underlined term with a book icon has additional information.

* Data marked with an asterisk indicates that this chemical is not explicitly listed on the corresponding list. Instead, it belongs to a group of chemicals that IS designated on the list. For example, if an agency assigns a classification of reproductive toxicant to "mercury compounds", that classification is applied to all mercury compounds in the PAN Pesticide database, which are then marked with an asterisk.

To print this page, choose Print. To export this data, choose Save As 'HTML Source' and open it in Excel or equivalent program.