Kong Long Huat Borax Decahydrate, BI GHS
Kong Long Huat Borax Decahydrate, BI GHS
Kong Long Huat Borax Decahydrate, BI GHS
Product Identifier
Product name BORAX DECAHYDRATE
Synonyms Disodium Tetraborate decahydrate
Chemical formula Na2B4O7.10H2O
CAS number 1303-96-4
Relevant identified uses of the substance or mixture and uses advised against
Industrial manufacturing
Relevant identified
uses
Continued...
SECTION 2 HAZARDS IDENTIFICATION
Min Max
Flammability 0
Toxicity 1 0= Minimum
Body Contact 2 1= Low
2= Moderate
Reactivity 0 3= High
Chronic 0 4= Extreme
Serious eye damage / Eye Irritation Category 2A, Reproductive Toxicity Category 1B, Acute Toxicity oral
Classification [1]
Category 5
1. Classification drawn from ICOP ; 2. Classification drawn from EC Directive 1272/2008 - Annex VI
Legend:
Label elements
GHS label
elements
Hazard statement(s)
H360 May damage fertility or the unborn child.
H319 Causes serious eye irritation.
H303 May be harmful if swallowed
Substances
CAS No %[weight] Name Classification
Serious eye damage / Eye Irritation Category 2A, Reproductive Toxicity
Disodium Category 1B, Acute Toxicity oral Category 5; H360, H319, H303
1303-96-4 >99.4
Tetraborate,
decahydrate
Legend: 1. Classification drawn from ICOP ; 2. Classification drawn from EC Directive 1272/2008 - Annex VI 3. Classification
drawn from C&L
Mixtures
See section above for composition of Substances
Extinguishing media
There is no restriction on the type of extinguisher which may be used.
Use extinguishing media suitable for surrounding area.
MATERIAL DATA
It is the goal of the ACGIH (and other Agencies) to recommend TLVs (or their equivalent) for all substances for which there is
evidence of health effects at airborne concentrations encountered in the workplace.
At this time no TLV has been established, even though this material may produce adverse health effects (as evidenced in animal
experiments or clinical experience). Airborne concentrations must be maintained as low as is practically possible and occupational
exposure must be kept to a minimum.
NOTE: The ACGIH occupational exposure standard for Particles Not Otherwise Specified (P.N.O.S) does NOT apply.
Sensory irritants are chemicals that produce temporary and undesirable side-effects on the eyes, nose or throat. Historically
occupational exposure standards for these irritants have been based on observation of workers' responses to various airborne
concentrations. Present day expectations require that nearly every individual should be protected against even minor sensory
irritation and exposure standards are established using uncertainty factors or safety factors of 5 to 10 or more. On occasion animal
no-observable-effect-levels (NOEL) are used to determine these limits where human results are unavailable. An additional approach,
typically used by the TLV committee (USA) in determining respiratory standards for this group of chemicals, has been to assign ceiling
values (TLV C) to rapidly acting irritants and to assign short-term exposure limits (TLV STELs) when the weight of evidence from
irritation, bioaccumulation and other endpoints combine to warrant such a limit. In contrast the MAK Commission (Germany) uses a
five-category system based on intensive odour, local irritation, and elimination half-life. However this system is being replaced to be
consistent with the European Union (EU) Scientific Committee for Occupational Exposure Limits (SCOEL); this is more closely allied to
that of the USA.
OSHA (USA) concluded that exposure to sensory irritants can:
cause inflammation
cause increased susceptibility to other irritants and infectious agents
lead to permanent injury or dysfunction
permit greater absorption of hazardous substances and
acclimate the worker to the irritant warning properties of these substances thus increasing the risk of overexposure.
Exposure controls
Engineering controls are used to remove a hazard or place a barrier between the worker and the hazard.
Well-designed engineering controls can be highly effective in protecting workers and will typically be
independent of worker interactions to provide this high level of protection.
The basic types of engineering controls are:
Process controls which involve changing the way a job activity or process is done to reduce the risk.
Enclosure and/or isolation of emission source which keeps a selected hazard "physically" away from the
worker and ventilation that strategically "adds" and "removes" air in the work environment. Ventilation can
remove or dilute an air contaminant if designed properly. The design of a ventilation system must match the
Appropriate
particular process and chemical or contaminant in use.
engineering
Employers may need to use multiple types of controls to prevent employee overexposure.
controls
Local exhaust ventilation usually required. If risk of overexposure exists, wear approved respirator. Correct
fit is essential to obtain adequate protection. Supplied-air type respirator may be required in special
circumstances. Correct fit is essential to ensure adequate protection.
An approved self contained breathing apparatus (SCBA) may be required in some situations.
Provide adequate ventilation in warehouse or closed storage area. Air contaminants generated in the
workplace possess varying "escape" velocities which, in turn, determine the "capture velocities" of fresh
circulating air required to effectively remove the contaminant.
Simple theory shows that air velocity falls rapidly with distance away from the opening of a simple extraction
pipe. Velocity generally decreases with the square of distance from the extraction point (in simple cases).
Therefore the air speed at the extraction point should be adjusted, accordingly, after reference to distance
from the contaminating source. The air velocity at the extraction fan, for example, should be a minimum of 1-2
m/s (200-400 f/min) for extraction of solvents generated in a tank 2 meters distant from the extraction point.
Other mechanical considerations, producing performance deficits within the extraction apparatus, make it
essential that theoretical air velocities are multiplied by factors of 10 or more when extraction systems are
installed or used.
Personal
protection
Chemical stability Under normal ambient temperature (-40 °C to +40 °C), the product is stable. When heated it loses water,
eventually forming anhydrous borax ( Na2B2O7)
Possibility of
hazardous Reaction with strong reducing agents such as metal hydrides or alkali metals will generate hydrogen gas
reactions which could create an explosive hazard
Conditions to
Avoid contact with strong reducing agents by storing according to good industrial practice
avoid
Incompatible
Strong reducing agents
materials
Hazardous
decomposition None
products
11.1 Information on the likely routes of exposure (inhalation,ingestion, skin and eye contact:
Inhalation is the most significant route of exposure in occupational and other settings. Dermal exposure is not usually a concern
because product is poorly absorbed through intact skin. Product is not intended for ingestion
(f) Carcinogenicity
Method: OECD 451 equivalent
Result: No evidence of carcinogenicity (based on boric acid). Based on the available data, the classification criteria are not met.
Method: Occupational studies of evaluating sensitive sperm parameters in highly exposed borate workers.
Result: No adverse fertility effects in male workers. Epidemiological studies of human development effects have shown an absence
of effect in exposed borate worker and population living areas with high environmental levels of boron
11.3 Delayed and immediate effects as well as chronic effects ffrom short and long term exposure
Human epidemiological studies show no increase in pulmonary disease in occupational populations with chronic exposure to boric
acid and sodium borate dust. Human epidemiological studies indicate no effect on fertility in occupational populations with chronic
exposure to borate dust and indicate no to a general population with high exposures to borated in the environment.
database - Aquatic Toxicity Data 5. ECETOC Aquatic Hazard Assessment Data 6. NITE (Japan) -
Bioconcentration Data 7. METI (Japan) - Bioconcentration Data 8. Vendor Data
Metal-containing inorganic substances generally have negligible vapour pressure and are not expected to partition to air. Once
released to surface waters and moist soils their fate depends on solubility and dissociation in water. Environmental processes (such
as oxidation and the presence of acids or bases) may transform insoluble metals to more soluble ionic forms. Microbiological
processes may also transform insoluble metals to more soluble forms. Such ionic species may bind to dissolved ligands or sorb to
solid particles in aquatic or aqueous media. A significant proportion of dissolved/ sorbed metals will end up in sediments through the
settling of suspended particles. The remaining metal ions can then be taken up by aquatic organisms.
When released to dry soil most metals will exhibit limited mobility and remain in the upper layer; some will leach locally into ground
water and/ or surface water ecosystems when soaked by rain or melt ice. Environmental processes may also be important in
changing solubilities.
Even though many metals show few toxic effects at physiological pHs, transformation may introduce new or magnified effects.
A metal ion is considered infinitely persistent because it cannot degrade further.
The current state of science does not allow for an unambiguous interpretation of various measures of bioaccumulation.
The counter-ion may also create health and environmental concerns once isolated from the metal. Under normal physiological
conditions the counter-ion may be essentially insoluble and may not be bioavailable.
Environmental processes may enhance bioavailability.
For boron and borates:
Environmental fate:
Boron is generally found in nature bound to oxygen and is never found as the free element. Atmospheric boron may be in the form of
particulate matter or aerosols as borides, boron oxides, borates, boranes, organoboron compounds, trihalide boron compounds, or
borazines. Borates are relatively soluble in water, and will probably be removed from the atmosphere by precipitation and dry
deposition. The half-life of airborne particles is usually on the order of days, depending on the size of the particle and atmospheric
conditions.
Boron readily hydrolyses in water to form the electrically neutral, weak monobasic acid boric acid (H3BO3) and the monovalent ion,
B(OH)4-. In concentrated solutions, boron may polymerise, leading to the formation of complex and diverse molecular arrangements.
Because most environmentally relevant boron minerals are highly soluble in water, it is unlikely that mineral equilibria will control the
fate of boron in water. Boron was found to not be significantly removed during the conventional treatment of waste water. Boron
may, however, be co-precipitated with aluminum, silicon, or iron to form hydroxyborate compounds on the surfaces of minerals.
Waterborne boron may be adsorbed by soils and sediments. Adsorption-desorption reactions are expected to be the only significant
mechanism that will influence the fate of boron in water. The extent of boron adsorption depends on the pH of the water and the
chemical composition of the soil. The greatest adsorption is generally observed at pH 7.5-9.0. the single most important property of soil
that will influence the mobility of boron is the abundance of amorphous aluminum oxide. The extent of boron adsorption has also been
attributed to the levels of iron oxide, and to a lesser extent, the organic matter present in the soil, although other studies found that the
amount of organic matter present was not important. The adsorption of boron may not be reversible in some soils. The lack of
reversibility may be the result of solid-phase formation on mineral surfaces and/or the slow release of boron by diffusion from the
interior of clay minerals.
It is unlikely that boron is bioconcentrated significantly by organisms from water. A bioconcentration factor (BCF) relates the
concentration of a chemical in the tissues of aquatic and terrestrial animals or plants to the concentration of the chemical in water or
soil. The BCFs of boron in marine and freshwater plants, fish, and invertebrates were estimated to be <100. Experimentally measured
BCFs for fish have ranged from 52 to 198. These BCFs suggest that boron is not significantly bioconcentrated.
As an element, boron itself cannot be degraded in the environment; however, it may undergo various reactions that change the form
of boron (e.g., precipitation, polymerization, and acid-base reactions) depending on conditions such as its concentration in water and
pH. In nature, boron in generally found in its oxygenated form. In aqueous solution, boron is normally present as boric acid and borate
ions, with the dominant form of inorganic boron in natural aqueous systems as undissociated boric acid. Boric acid acts as an
electron acceptor in aqueous solution, accepting an hydroxide ion from water to form (B(OH)4)-ion. In dilute solution, the favored form
of boron is B(OH)4. In more concentrated solutions (>0.1 M boric acid) and at neutral to alkaline pH (6–11), polymeric species are
formed (e.g., B3O3(OH)4-, B5O6(OH)4-, B3O3(OH)52-, and B4O5(OH)42-)
Most boron compounds are transformed to borates in soil due to the presence of moisture. Borates themselves are not further
degraded in soil. However, borates can exist in a variety of forms in soil. Borates are removed from soils by water leaching and by
assimilation by plants.
The most appreciable boron exposure to the general population is likely to be ingestion of food and to a lesser extent in water. As
boron is a natural component of the environment, individuals will have some exposure from foods and drinking water
Boron-containing salts (borates) are ubiquitous in the environment. Surface soil, unpolluted waterways and seawater all typically
contain significant amounts of boron as borate. Boron is an essential micronutrient for healthy growth of plants, however, it can be
harmful to boron sensitive plants in higher quantities. In some areas such as the American Southwest, boron occurs naturally in
surface waters in concentrations that have been shown to be toxic to commercially important plants.
Version No: 3 Page 13 of 13 Review Date: 11/05/2020
BORAX DECAHYDRATE
Labels Required
Marine Pollutant NO
HAZCHEM Not Applicable
Air transport (ICAO-IATA / DGR): NOT REGULATED FOR TRANSPORT OF DANGEROUS GOODS
Sea transport (IMDG-Code / GGVSee): NOT REGULATED FOR TRANSPORT OF DANGEROUS GOODS
Safety, health and environmental regulations / legislation specific for the substance or mixture
This safety data sheet is in compliance with the Occupational Safety and Health (Classification, Labelling and Safety Data Sheet of
Hazardous Chemicals) Regulations 2013 (CLASS).
The SDS is a Hazard Communication tool and should be used to assist in the Risk Assessment. Many factors determine whether the
reported Hazards are Risks in the workplace or other settings. Risks may be determined by reference to Exposures Scenarios. Scale
of use, frequency of use and current or available engineering controls must be considered.
end of SDS