HYDROFLUOSILICIC ACID
Is an inorganic compound with the chemical formula H2SiF6. Aqueous solutions of Hydrofluosilicic acid consist of salts of the cation and hexafluoro silicate anion.
- Part number
- RXSOL-19-3791-025
- Category
- Construction Chem
- Brand
- RXSOL
Overview
HYDROFLUOSILICIC ACID is an inorganic compound with the chemical formula H2SiF6. Aqueous solutions of Hydrofluosilicic acid consist of salts of the cation and hexafluoro silicate anion.
Technical specifications
Properties and Composition
| Chemical Formula | H₂SiF₆ |
|---|---|
| Appearance | A colorless to pale, straw-colored liquid |
| Odor | A sharp, irritating, or pungent odor |
| Corrosivity | Highly corrosive to metals, glass, and living tissues |
| Composition in Water | In aqueous solution, it exists as a mixture, with the hexafluorosilicate anion (SiF₆²⁻) being a prominent species |
Applications
Industrial Uses
Water Fluoridation: Its most common use is to add fluoride to drinking water to help prevent dental caries (cavities).
Manufacturing: It's used to make aluminum fluoride and cryolite.
Materials Science: It acts as a hardener for cement and ceramics and is used in wood preservation.
Electronics: Used in the production of silicon chips and solar panels.
Organic Synthesis: It can be a reagent for cleaving Si-O bonds in organic chemistry.
Characteristics and notes
Hydrofluosilicic acid is a by-product of the process where phosphoric rock is treated with sulfuric acid to produce fertilizer.
The resulting hydrogen fluoride and silicon tetrafluoride gases are captured and scrubbed with water to form the acid.
Safety and SDS
Read the safety data sheet before handling. Wear suitable gloves and eye protection.
View safety data sheet
| Porduct Name | HYDROFLUOSILICIC ACID |
| Part Number | RXSOL-19-3791-025 |
Company Details:
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
Branch : Kandla, Mumbai , Chennai, Vizag, Kolkata, UAE , OMAN , CANADA and KENYA
| Phone | +91 22 20871200 - 1400 |
| Fax | +91 22 27612100 :::AOH :0091 9821214367 |
| rxsolchemicals@gmail.com | |
| Website | www.rxmraine.com |
| Chemical Name | Cas No | EC No | Classification | weight |
| Hypophosphorous acid 50% | 6303-21-5 | 228-601-5 | Met. Corr. 1; Skin Corr. | >= 50 - < 70 % |
| Signal Word | Danger |
| Hazard Statements | H300 + H310 Fatal if swallowed or in contact with skin. |
| Precautionary statements | P262 Do not get in eyes, on skin, or on clothing. P280 Wear protective gloves/ protective clothing. P301 + P310 + P330 IF SWALLOWED: Immediately call a POISON CENTER/ doctor. Rinse mouth. P302 + P352 + P310 IF ON SKIN: Wash with plenty of water. Immediately call a POISON CENTER/ doctor. |
| Classification of the substance or mixture | Not a hazardous substance or mixture according to Regulation (EC) No 1272/2008. |
| Supplemental Hazard Statements | None |
| Other hazards | This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher. |
| General advice | First aiders need to protect themselves. Show this material safety data sheet to the doctor in attendance. |
| If inhaled | fresh air. Call in physician. |
| Eye Contact | After eye contact: rinse out with plenty of water. Immediately call in ophthalmologist. Remove contact lenses. |
| Swallowed | After swallowing: make victim drink water (two glasses at most), avoid vomiting (risk of perforation). Call a physician immediately. Do not attempt to neutralise. |
| Skin Contact | In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower. Call a physician immediately. |
| Inhalation | Remove patient to fresh air, keep warm and at rest and get medical assistance in necessary. |
| Ingestion | Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a doctor or Poison Control Center immediately. |
| Most important symptoms and effects, both acute and delaye | The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11 |
| Indication of any immediate medical attention and special treatment needed | No data available |
| Flammability | May be combustible at high temperature. |
| Suitable extinguishing media | Use extinguishing measures that are appropriate to local circumstances and the surrounding environment. |
| Unsuitable extinguishing media | For this substance/mixture no limitations of extinguishing agents are given. |
| Special hazards arising from the substance or mixture | Not combustible. Fire may cause evolution of: Oxides of phosphorus Ambient fire may liberate hazardous vapours. |
| Further information | Suppress (knock down) gases/vapors/mists with a water spray jet. Prevent fire extinguishing water from contaminating surface water or the ground water system. |
|
Hazardous combustion products |
Fire may cause the evolution of Sulphur oxides, nitrogen oxides. |
| Advice for firefighters | Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing. |
| Protective Equipment | Use personal protective equipment. |
| Specific Hazards Arising from the Chemical |
Has a fire-promoting effect due to the release of oxygen. Ambient fire may liberate hazardous vapours. |
| Personal precautions, protective equipment and emergency procedures | Advice for non-emergency personnel: Do not breathe vapors, aerosols. Avoid substance contact. Ensure adequate ventilation. Evacuate the danger area, observe emergency procedures, consult an expert. For personal protection see section 8. |
| Spillage | Oxidizing material. Stop leak if without risk. Avoid contact with a combustible material (wood, paper, oil, clothing...). Keep substance damp using water spray. Do not touch spilled material. Prevent entry into sewers, basements or confined areas dike if needed. Eliminate all ignition sources. Call for assistance on disposal. |
| Personal Protection | Advice for non-emergency personnel: Avoid inhalation of dusts. Evacuate the danger area, observe emergency procedures, consult an expert. Advice for emergency responders: Protective equipment see section 8. |
| Enviromental Precaution | Do not let product enter drains. |
|
Methods and materials for containment and cleaning |
Contain spillage, and then collect with non-combustible absorbent material, (e.g. sand, earth, diatomaceous earth, vermiculite) and place in container for disposal according to local / national regulations (see section 13). |
| Reference to other sections | For disposal see section 13. |
| Advice on protection against fire and explosion | Keep away from sources of ignition - No smoking.Take measures to prevent the build up of electrostatic charge. |
| Incompatible materials | Keep away from alkalis, strong oxidizing agents and metals. Provide containment walls of adequate capacity to hold any accidental spills. |
| Hygiene measures | Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling the product. For precautions see section 2.2. |
| Advice on safe handling | Avoid contact with skin and eyes. Avoid inhalation of vapor or mist. |
| Conditions for safe storage, including any incompatibilities | Tightly closed. Dry. Keep in a well-ventilated place. Keep locked up or in an area accessible only to qualified or authorized persons. Moisture sensitive. |
| Storage conditions | Tightly closed. Recommended storage temperature see product label. |
| Storage class | Storage class (TRGS 510): 3: Flammable liquids |
| Specific end use(s) | Apart from the uses mentioned in section 1.2 no other specific uses are stipulated |
| Advice on general occupational hygiene | Advice on safe handling Observe label precautions. Change contaminated clothing. Wash hands after working with substance. |
| Exposure controls | No specific additional engineering controls are required. Provide good natural or artificial ventilation. |
| Engineering Control | Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. |
| Eye/face protection |
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Tightly fitting safety goggles |
| Body Protection | Acid-resistant protective clothing |
| Skin protection | This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de). Full contact Material: Nitrile rubber Minimum layer thickness: 0,11 mm Break through time: > 480 min Material tested:KCL 741 Dermatril® L This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de). Splash contact Material: Nitrile rub |
| Respiratory protection |
Recommended Filter type: filter ABEK The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented. required when vapours/aerosols are generated. Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system. Recommended Filter type: Filter type ABEK The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented
|
| Other Protection Measure | Handle in accordance with good industrial hygiene and safety practice. |
| Control of environmental exposure | Prevent further leakage or spillage if safe to do so. Do not let product enter drains. |
| Physical state | Liquid |
| Colour | Colorless |
| Odour | odorless |
| Odor Threshold | Not Applicable |
| pH | 1 at 20 °C |
| Melting Point | < -25 °C |
| Boiling Point | 108 °C at 1.013 hPa |
| Flash Point | 6 °C - closed cup |
| Evaporation Rate | Not Applicable |
| Flammability (solid, gas) | No data available |
| Explosive limits | No Data Available |
| Upper/lower flammability or explosive limits | No data available |
| Autoignition temperature | No data available |
| Decomposition temperature | No data available |
| Vapour pressure | 30 hPa at 20 °C |
| Viscosity | No data available |
| Density | 0,772 g/mL at 25 °C - lit. |
| Relative Density | No data available |
| Specific Gravity | No data available |
| Partition coefficient | No data available |
| Explosive properties | No data available |
| Solubility | at 20 °C soluble |
| Ignition temperature | No information available. |
| Particle characteristics | No data available |
| Reactivity | No data available |
| Chemical stability | The product is chemically stable under standard ambient conditions (room temperature) . |
| Possibility of hazardous reactions | Risk of ignition or formation of inflammable gases or vapours with: Metals Violent reactions possible with: Strong oxidizing agents Bases mercury(II) nitrate Risk of explosion with: mercury oxide A risk of explosion and/or of toxic gas formation exists with the following substances: hydrochloric acid sulfuric acid |
| Conditions to avoid | Heat, flames and sparks. |
| Incompatible materials |
MetalsGives off hydrogen by reaction with metals.Metals
|
| Hazardous decomposition products | In the event of fire: see section 5 |
| Acute toxicity | Symptoms: If ingested, severe burns of the mouth and throat, as well as a danger of perforation of the esophagus and the stomach. Symptoms: mucosal irritations, Cough, Shortness of breath, Possible damages:, damage of respiratory tract Dermal: No data available |
| Skin corrosion/irritation | Skin - Rabbit Result: Mild skin irritation - 24 h |
| Serious eye damage/irritation | Mixture causes serious eye damage. Risk of blindness! |
| Respiratory or skin sensitization | No data available |
| Carcinogenicity | No data available |
| Germ cell mutagenicity | No data available |
| Reproductive toxicity | No data available |
| Specific target organ toxicity - single exposure |
No data available
|
| Additional Information | RTECS: UF9625000 Lung irritation, Cyanosis, Central nervous system depression To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated. |
| Persistence and degradability | No data available |
| Toxicity to fish | LC50 - Oncorhynchus mykiss (rainbow trout) - > 100 mg/l - 96 h |
| Toxicity to daphnia and other aquatic invertebrates | EC50 - Daphnia magna (Water flea) - > 100 mg/l - 48 h |
| Toxicity | Toxicity to fish LC50 - Pimephales promelas (fathead minnow) - 1.520 mg/l - 96 h |
| Toxicity to bacteria | EC10 - Bacteria - 14 mg/l - 72 h Remarks: (Lit.) EC5 - E.coli - 15.000 mg/l Remarks: (Lit.) (maximum permissible toxic concentration) |
| Toxicity to algae | Static test ErC50 - Pseudokirchneriella subcapitata (green algae) - 74,35 mg/l - 72 h (OECD Test Guideline 201) Remarks: (in analogy to similar products) The value is given in analogy to the following substances: maleic acid |
| Products Biodegradation | The methods for determining the biological degradability are not applicable to inorganic substances. |
| Mobility in soil | No data available |
| Results of PBT and vPvB assessment | This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher. |
| Endocrine disrupting properties | No data available |
| Other adverse effects | Harmful effect due to pH shift. Discharge into the environment must be avoided. |
| Product | See www.retrologistik.com for processes regarding the return of chemicals and containers, or contact us there if you have further questions. |
| UN number | ADR/RID: 3264 IMDG:3264 IATA: 3264 |
| UN proper shipping name | ADR/RID:CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (Hypophosphorous acid) IMDG:CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (Hypophosphorous acid) IATA:CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (Hypophosphorous acid) |
| Transport hazard class(es) | ADR/RID: 8 IMDG: 8 IATA:8 |
| Packaging group | ADR/RID: III IMDG: III IATA:III |
| Environmental hazards | ADR/RID: No IMDG: No IATA: No |
| Special precautions for user | No data available |
| Further information | Not classified as dangerous in the meaning of transport regulations. |
| Safety, health and environmental regulations/legislation specific for the substance or mixture | This material safety data sheet complies with the requirements of Regulation (EC) No. 1907/2006. |
| Other regulations | Observe work restrictions regarding maternity protection in accordance to Dir 92/85/EEC or stricter national regulations where applicable. Take note of Dir 94/33/EC on the protection of young people at work. |
| Chemical Safety Assessment | For this product a chemical safety assessment was not carried out |
| Other Information |
The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and weassume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Rx Marine International has been advised of the possibility of such damages. DISCLAIMER OF LIABILITY :The information in this SDS was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied, regarding its correctness. The conditions or methods of handling, storage, use or disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling, storage, use or disposal of the product. This MSDS was prepared and is to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable. |
