Sodium bifluoride

61.99450

61.99440

215-608-3

3W2KK83V5G

2439

DTXSID1037010

COLORLESS, OR WHITE CRYSTALLINE POWDER, RHOMBOHEDRAL

0 Ų

-2.46330

DryPowder; OtherSolid, Liquid

2.08 g/cm³

68ºC

19.5ºC at 760 mmHg

SOL IN COLD & HOT WATER

Decomp on heating.

Water soluble. Reacts with water liberating heat and forming a corrosive solution. The reaction is not violent.|Reacts with water liberating heat and forming a corrosive solution. The reaction is not violent.

Salts, Acidic

Acidic salts, such as SODIUM BIFLUORIDE, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions. Solutions of sodium bifluoride may contain some hydrofluoric acid, which can cause severe chemical burns and is one of the few materials that can etch glass. Unlike other halide ions, fluoride is quite reactive, acting as a weak base and participating in some unique reactions. In particular, fluorides react strongly with compounds containing calcium, magnesium, or silicon ions, which means that solutions containing soluble fluorides are corrosive to both living tissue and glass.

Not flammable (USCG, 1999)

II

8

UN 2439

1

R25; R34

S22-S26-S37-S45

WB0350010

C

Missing Phrase - N15.00950417-P260-P280-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338

H301-H314

Bottled water packaged in the USA to which no fluoride is added shall not contain fluoride in excess of 1.8 mg/l at 63.9-70.6 °F. Bottled water packaged in the USA to which fluoride is added shall not contain fluoride in excess of 1.2 mg/l at 63.9-70.6 °F. Imported bottled water to which no fluoride is added and imported bottled water to which fluoride is added shall not contain fluoride in excess of 1.4 mg/l and 0.8 mg/l, respectively. /Fluoride/

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. For electric vehicles or equipment, ERG Guide 147 (lithium ion batteries) or ERG Guide 138 (sodium batteries) should also be consulted. (ERG, 2016)|Corrosives, Reactive - 1st degree

|Danger|H301: Toxic if swallowed [Danger Acute toxicity, oral]|P260, P264, P270, P280, P301+P310, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P363, P405, and P501|H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]|Aggregated GHS information provided by 204 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]|P260, P264, P270, P307+P311, P314, P321, P405, and P501

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: SMALL FIRE: Dry chemical, CO2 or water spray. LARGE FIRE: Dry chemical, CO2, alcohol-resistant foam or water spray. Move containers from fire area if you can do it without risk. Dike fire-control water for later disposal; do not scatter the material. FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. (ERG, 2016)

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2016)

Rubber gloves, safety glasses, self-contained breathing apparatus. (USCG, 1999)|Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. (ERG, 2016)

/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Health: TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.|/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Fire or Explosion: Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.|/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate enclosed areas.|/GUIDE 154: SUBSTANCES - TOXIC AND/OR CORROSIVE (NON-COMBUSTIBLE)/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.|For more DOT Emergency Guidelines (Complete) data for SODIUM HYDROGEN DIFLUORIDE (8 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

HIGHLY TOXIC; STRONG IRRITANT TO TISSUE.

Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 2.5 mg/cu m. /Fluorides, as F/|Permissible Exposure Limit: Table Z-2 8-hr Time Weighted Avg: 2.5 mg/cu m. /Fluoride as dust/

Persons in charge of vessels or facilities are required to notify the National Response Center (NRC) immediately, when there is a release of this designated hazardous substance, in an amount equal to or greater than its reportable quantity of 100 lb or 45.4 kg. The toll free number of the NRC is (800) 424-8802; In the Washington D.C. metropolitan area (202) 426-2675. The rule for determining when notification is required is stated in 40 CFR 302.4 (section IV. D.3.b).

From a study of these cases one concludes that a single dose of 5 to 10 g (70 to 140 mg/kg) of sodium fluoride by mouth is almost certain to be lethal in an untreated adult. /Sodium fluoride/

LD50 Rat oral 80 mg/kg /Sodium fluoride/

OCCURS ARTIFICIALLY FROM TIN PLATE PRODUCTION; NEUTRALIZER IN LAUNDRY RINSING OPERATIONS; PRESERVATIVE FOR ZOOLOGICAL & ANATOMICAL SPECIMENS; ETCHING GLASS; ANTISEPTIC.|LEATHER BLEACH|CLEANER FOR STONE & BRICK BUILDING FACES.

Food and Environmental Agents: Effect on Breast-Feeding: Reported Sign or Symptom in Infant or Effect on Lactation: Fluorides: None. /from Table 7/

Similarly, hydrofluoric acid can be absorbed percutaneously to produce severe systemic poisoning. Such was the case in one skin burn due to 5 g of pure anhydrous liquid hydrofluoric acid (chilled and under pressure until the vessel burst); about 2.5% of the body surface area was estimated to have been contaminated. In a remarkably similar episode, the patient experienced severe hypocalcemia and multiple attacks of ventricular fibrillation but no pulmonary edema; he died in asystole after 9.5 hours. Blood fluoride levels in such patients are sometimes comparable to those found in persons dying after ingestion of neutral salts. /Hyrofluoric acid/|Whatever the mechanism, fluoride almost certainly does accumulate rapidly in bone during acute fluoride poisoning. Though temporary, its large accretion in bone serves to protect vulnerable soft tissues and organs. Most of the sequestered fluoride, however, is eventually released but only slowly. If renal function is not seriously impaired, it is excreted in urine. In this way the body burden of fluoride is safely lowered but only over a long period of time, probably several days or a few weeks. ...

INHALATION OF DUST: Irritating and possibly corrosive to mucous membranes. EYES: Irritating. INGESTION: Salty or soapy taste, salivation, nausea, burning or crampy abdominal pain, vomiting, diarrhea, muscle weakness, tremors. Rare: transient epileptiform convulsions, followed by CNS depression. Shock. (USCG, 1999)|Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. (ERG, 2016)

Call a doctor. INGESTION: Gastric lavage with lime water or a 1% solution of calcium chloride. Aluminum hydroxide gel should be exceptionally effective for binding flouride. EYES: Wash with running water or weak boric acid solution followed by water. SKIN: Wash with soap and water. (USCG, 1999)|Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim calm and warm. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. (ERG, 2016)

... Extensive experimental evaluation of possible treatments of hydrofluoric acids burns of rabbit eyes, which, to the extent that rabbit and human eyes are comparable, appears to provide a sound scientific basis for a choice. Fluoride ion is toxic when it gains access to the corneal stroma through damage of the corneal epithelium by low acid pH. ... Compared the results of irrigating burned eyes for 30 minutes with one liter each of a series of substances designed to inactivate fluoride ion, and separately evaluated the toxicity of these substances themselves. ... Subconjunctival injections ... concluded that subconjunctival 10% calcium gluconate or irrigation with 0.2% benzethionum chloride or 0.05% benzalkonium chloride were themselves too injurious to normal rabbit eyes to recommend for clinical use. ... Found the only non-toxic treatment with therapeutic value was a single irrigation with isotonic sodium chloride or magnesium chloride. ... Found that repeated irrigation was inadvisable because it strikingly increased the frequency of corneal ulceration in burned eyes. ... The simplest and most effective first-aid treatment was copious irrigation with water or saline. /Hydrofluoric acid/

Burns of the eye by hydrofluoric acid can be devastating. Anhydrous hydrogen fluoride has been known to destroy the eye and to require enucleation ... . The danger of hydrofluoric acid solutions depends upon the concentration. /Anhydrous hydrogen fluoride/|Industrial experience in chemical manufacturing where a mixture of fluorine, fluorides, and hydrogen fluoride may be present in the air indicates that conjunctival hyperemia in the palpebral tissue occurs commonly, irritation of the eyelids occurs occasionally, but corneal disturbance is rare. /Hydrogen fluoride/|Less than 1 g by mouth, however, has caused dangerous poisoning; whereas 120 g has been survived, probably because of prompt vomiting. Six grams have been administered intravenously to a teenager without signs of systemic toxicity, but the dosage was given intermittently over a period of 9 days. The systemic toxicity of sodium fluosilicate is about equal to that of sodium fluoride, whereas the less soluble cyrolite is much less toxic. /Sodium fluoride/|A remarkable mass of poisoning, involving 263 victims of whom 47 died, occurred at the Oregon State Hospital when sodium fluoride roach powder mistaken for powdered milk was added scrambled eggs. The prepared dish was rejected by some because of a salty or soapy taste and produced numbness of the mouth in others. Toxic signs and symptoms consisted of abrupt and severe nausea, vomiting and diarrhea, followed promptly by abdominal burning and cramps. In many cases blood was noted in the vomitus and feces. General collapse was evidenced by pallor, weakness, shallow pulse and respirations, weak heart sounds, wet cold skin, cyanosis, mydriasis and coma. Some victims also experienced a thick, mucoid discharge from the mouth and nose, paralysis of the muscles of deglutution, painful carpopedalspasms of the extremities and localized or generalized urticaria. /Sodium fluoride/|For more Human Toxicity Excerpts (Complete) data for SODIUM HYDROGEN DIFLUORIDE (6 total), please visit the HSDB record page.

All other chemical product and preparation manufacturing|Sodium fluoride (Na(HF2)): ACTIVE

ANALYTE: GASEOUS & PARTICULATE FLUORIDES; MATRIX: AIR; RANGE: LOWER LIMIT 0.005 MG/CU M AIR; PROCEDURE: COLLECTION ON MEMBRANE FILTER & ALKALINE FILTER, SELECTIVE ION ELECTRODE. /FLUORIDES/|ANALYTE: TOTAL FLUORIDE; MATRIX: AIR; RANGE: 0.05 TO 475 MG/CU M FLUORIDE; PROCEDURE: COLLECTION VIA IMPINGER, ION SPECIFIC ELECTRODE. /FLUORIDE/|Sodium in water: Atomic Absorption Spectrophotometric Method - Can be used to determine sodium in water at wavelength of 589.0 nm. Flame gases are air-acetylene. This method has a sensitivity of 0.005-0.2 mg/l. This method is applicable to determination of 1-200 mg sodium/l in surface and saline waters, and domestic and industrial wastes. /Sodium/|M325B Flame Emission Photometic Method. Trace amounts of sodium can be determined by flame emission photometry at a wavelength of 589 nm. The intensity of light is measured by a phototube potentiometer or other appropriate circuit. The intensity of light at 589 nm is approximately proportional to the concentration of the element. The calibration curve may be linear but has a tendency to level off at high concentrations. Flame photometers operating on the internal standard principle may require adding a standard lithium solution to each working standard and sample. The optimum lithium concentration may vary among individual instruments; therefore, ascertain it for the instrument. A synthetic sample containing 19.9 mg Na/l, 108 mg Ca/l, 82 mg Mg/l, 3.1 mg K/l, 241 mg Cl (-)/l, 0.25 mg NO2 -N/l, 1.1 mg NO3-N/l, 259 mg SO4 (2-)/l, and 42.5 mg total alkalinity/l was analyzed in 35 laboratories by the flame photometric method, with a relative standard deviation of 17.3% and a relative error of 4.0% /Sodium/|For more Analytic Laboratory Methods (Complete) data for SODIUM HYDROGEN DIFLUORIDE (9 total), please visit the HSDB record page.

ANALYTE: FLUORIDE; MATRIX: URINE; RANGE: LOWER LIMIT URINE 0.19 MG/LITER; PROCEDURE: ION SPECIFIC ELECTRODE. /FLUORIDE/

Fire Hazards -> Corrosives, Reactive - 1st degree