2 edition of Occupational exposure to boron trifluoride found in the catalog.
Occupational exposure to boron trifluoride
National Institute for Occupational Safety and Health. Division of Criteria Documentation and Standards Development
by Dept. of Health, Education, and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health, for sale by the Supt. of Docs., U.S. Govt. Print. Off. in [Cincinnati], Washington
Written in English
|Other titles||Criteria for a recommended standard, occupational exposure to boron trifluoride|
|Series||Criteria for a recommended standard, DHEW publication ; no. (NIOSH) 77-122, DHEW publication -- no. (NIOSH) 77-122|
|The Physical Object|
|Pagination||x, 83 p. :|
|Number of Pages||83|
On Ma , according to Decree published on Ma in the Gazette officielle du Québec, the Regulation respecting occupational health and safety (RSST, RLRQ, c. S, r. 13) is amended in Appendix 1. Boron trifluoride reacts with water to give boric acid and fluoroboric acid. The reaction commences with the formation of the aquo adduct, H2O-BF3, which then loses HF that gives fluoboric acid with boron trifluoride. Boron trifluoride is most importantly used as a .
Boron trifluoride dibutyl etherate CAS-No. New Jersey Right To Know Components Boron trifluoride dibutyl etherate CAS-No. Revision Date California Prop. 65 Components This product does not contain any chemicals known to State of California to cause cancer, birth defects, or any other reproductive harm. Occupational exposure limit (OEL) values are derived within two legal frameworks that form an integral part of the EU’s mechanism for protecting the health of workers. BORON TRIFLUORIDE DIHYDRATE. EU. ADN Dangerous Goods Lists, Directive /68/EC, EU. ADR Dangerous Goods Lists, Directive /68/EC, EU. RID Dangerous Goods Lists.
Ingestion of boron from food (primarily fruits and vegetables) and water is the most frequent route of human exposure, but occupational exposures to boron dusts may be significant. Boron is also a component of several consumer products, including cosmetics medicines and insecticides. Populations. BORON TRIFLUORIDE ETHERATE Safety Data Sheet INBO Date of issue: 03/03/ Version: Germany TRGS Occupational exposure limit value (mg/m³) mg/m³ Germany TRGS Occupational exposure limit value (ppm) ppm Gibraltar Eight hours mg/m3 mg/m³.
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Other animal data: Exposure to a concentration of ppm resulted in a uniformly high mortality rate in six laboratory species, and 15 ppm was occasionally fatal in day studies [Stokinger et al.
Rats exposed 6 hours/day to 24 ppm or 2 weeks to 9 ppm showed signs of respiratory irritation, depression of body weight, increased lung weights, and depressed liver weights [Rusch et al. Get this from a library. Occupational exposure to boron trifluoride. [National Institute for Occupational Safety and Health.; Centers for Disease Control (U.S.)].
Get this from a library. Occupational exposure to boron trifluoride: criteria for a recommended standard. [National Institute for Occupational Safety and Health.].
"This report presents the criteria and recommended standard based thereon which were prepared to meet the need for preventing occupational diseases arising from exposure to boron trifluoride and resultant mists.
The biological effects of exposure are reviewed including effects on humans, epidemiological studies, and animal toxicity.
Boron trifluoride is a colorless gas with a pungent odor. It is toxic by inhalation. It is soluble in water and slowly hydrolyzed by cold water to give off hydrofluoric acid, a corrosive vapors are heavier than air.
Prolonged exposure of the containers to fire or. The adduct with diethyl ether, boron trifluoride diethyl etherate, or just boron trifluoride etherate, (BF 3 O(Et) 2) is a conveniently handled liquid and consequently is widely encountered as a laboratory source of BF 3.
It is stable as a solution in ether—an excess of ether compared to BF 3 —but not as a pure stoichiometric substance. Boron trifluoride Related Pages Synonyms & Trade Names Boron fluoride, Trifluoroborane CAS No.
RTECS No. ED DOT ID & Guide. Formula. BF₃. Conversion. 1 ppm = mg/m 3. IDLH. 25 ppm See: Exposure Limits. NIOSH REL C 1 ppm (3 mg/m 3) OSHA PEL C 1 ppm (3 mg/m 3) Measurement Methods. None available See. * Boron Trichloride can cause nausea, vomiting, diarrhea and weight loss.
* High exposure to Boron Trichloride can cause seizures, convulsions, depression, coma and death. Chronic Health Effects The following chronic (long-term) health effects can occur at some time after exposure to Boron Trichloride and can last for months or years: Cancer Hazard.
ATSDR has derived an interm ediate-duration oral MRL of mg boron/kg/day for boron. This MRL is. based on a BMDL. 05 of mg boron/kg/day estimated from fetal body weight data from two studies in which pregnant rats were exposed to boron in the diet on gestation days 0–20 (Heindel et al.
; Price. This chemical inventory is OSHA's premier one-stop shop for occupational chemical information. It compiles information from several government agencies and organizations. Information available on the pages includes: Chemical identification and physical properties Exposure limits Sampling information.
Boron trifluoride is a strong Lewis acid and is, therefore, an excellent catalyst that is used in polymerizations, esterifications, and alkylations ().Its fire retardant and antioxidant properties are used by the magnesium industry for protecting molten magnesium and its alloys from oxidation (NIOSH ; Budavari et al.
), and its nuclear applications include use in neutron detection. Occupational exposure limits, if available, are listed in Section 8. Boron Trifluoride Section 8. Exposure controls/personal protection Hand protection Based on the hazard and potential for exposure, select a respirator that meets the appropriate standard or.
If the eyes have come in contact with boron trifluoride, irritation, pain, swelling, corneal erosion, and blindness may result. Dermal exposure may result in dermatitis (red, inflamed skin), severe burns, and pain. Emergency Life-Support Procedures: Acute exposure to boron trifluoride may require decontamination and life support for the victims.
Limited evidence suggests that repeated or long-term occupational exposure may produce cumulative health effects involving organs or biochemical systems. Boron trifluoride fumes strongly (dense white mist) in moist air to form corrosive hydrogen fluoride, fluoboric acid and.
This method describes the collection and analysis of airborne Boron Trifluoride. The analysis is based on measurement of fluoroborate using an ion specific electrode.
Sampling Procedure Ten milliliters (10 mL) of M NH 4 F solution is placed in an all glass midget impinger. Air is sampled at a flow rate of liter per minute. Warning: Boron trichloride is extremely corrosive. Caution is advised.
Signs and Symptoms of Acute Boron Trichloride Exposure: Signs and symptoms of acute ingestion of boron trichloride may be severe and include salivation, intense thirst, difficulty in swallowing, chills, pain, and shock.
Oral, esophageal, and stomach burns are common. o INHALATION EXPOSURE - Acute exposure to boron trifluoride gas has resulted in loss of consciousness and hypoxemia. o DERMAL EXPOSURE - Boron trifluoride can burn the skin, and contact with the liquid may cause frostbite.
It is absorbed through the skin. Citation: OSHA. "Method IDSG: Boron Trifluoride (BF3)." Sandy, Utah. Description: Analytical Method. Purpose/Objective: EPA’s Selected Analytical Methods for Environmental Remediation and Recovery (SAM) lists this method for preparation and analysis of air samples for detection and measurement of boron trifluoride.
occupational exposure to a chemical substance is deﬁned as the reference value to the maximal exposure concentra-tion of the substance during a working day at or below Boron trifluoride  ’79 Bromine  ’64 Bromoform  1 ’ Boron trifluoride.
Full: Joint: 1 - 10 tonnes per annum: View substance registered dossier: Boron trifluoride. Intermediate: Occupational exposure limits - Previous calls for comments and evidence; Occupational exposure limits – Consultations on OEL recommendation.
Boron trifluoride Safety Data Sheet P This SDS conforms to U.S. Code of Federal Regulations 29 CFRHazard Communication. Date of issue: 01/01/ Revision date: 10/13/ Supersedes: 03/23/ EN (English US) SDS ID: P 1/9.Boron trifluoride gas is corrosive to exposed tissues and to the upper and lower respiratory tracts.
The gas penetrates deeply into body tissues and will continue to exert toxic effects unless neutralized. Boron trifluoride decomposes to hydrofluoric acid in the presence of moisture, particularly in elevated temperature conditions.Routes of Exposure: Inhalation, skin, eye and mucous membrane contact.
Lengths of Exposure: Boron trifluoride has been found in animal studies to be toxic in acute (4 hour) and subchronic (several months) tests. Severity of Effect: Depends on concentration and .