TUNGSTEN POWDER 99%
- Part number
- RXSOL-60-6605-793
- Category
- Lab Chemical
- Brand
- RXSOL
Overview
Tungsten powder is used as a filler material in plastic composites, which are used as a nontoxic substitute for lead in bullets, shot, and radiation shields. Since this element's thermal expansion is similar to borosilicate glass, it is used for making glass-to-metal seals.
Applications
Current uses are as electrodes, heating elements and field emitters, and as filaments in light bulbs and cathode ray tubes. Tungsten is commonly used in heavy metal alloys such as high speed steel, from which cutting tools are manufactured. It is also used in the so-called 'superalloys' to form wear-resistant coatings.
Characteristics and notes
The technological process of preparing metal tungsten powder with metallurgical tungsten material includes the following steps: concentrating coarse Na2WO4 solution to crystallize and recovering excessive alkali, dissolving Na2WO4 crystal to obtain solution with WO3 concentration of 180-250 g/l and pH value of 7.5-8.5, adding alkali metal salt and evaporating to crystallize, treating the crystallized product in hydrogen atmosphere at 350-450 deg.c for 2 hr to obtain 'bluish tungsten' or calcining the crystallized product at 600-700 deg.c to obtain 'yellowish tungsten', and final reduction with hydrogen at 750-850 deg.c to obtain metal tungsten.
Safety and SDS
Read the safety data sheet before handling. Wear suitable gloves and eye protection.
View safety data sheet
| Porduct Name | TUNGSTEN POWDER 99% |
| Part Number | RXSOL-60-6605-793 |
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 | Whight | Formula |
| Tungsten | 7440-33-7 | 231-143-9 | W | 183,84 g/mol |
| Signal Word | Warning |
| Hazard Statements | H252 Self-heating in large quantities; may catch fire. |
| Precautionary statements | P235 Keep cool. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P403 + P235 Store in a well-ventilated place. Keep cool. P407 Maintain air gap between stacks or pallets. P420 Store separately. |
| Classification of the substance or mixture | Self-heating substances and mixtures (Category 2), H252 |
| 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 | Consult a physician. Show this material safety data sheet to the doctor in attendance. |
| If inhaled | After inhalation: fresh air. |
| Eye Contact | Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. |
| Swallowed | After swallowing: make victim drink water (two glasses at most). Consult doctor if feeling unwell. |
| Skin Contact | In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower. |
| 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 |
| Suitable extinguishing media | Water Foam Carbon dioxide (CO2) Dry powder |
| Unsuitable extinguishing media | For this substance/mixture no limitations of extinguishing agents are given. |
| Special hazards arising from the substance or mixture | Nature of decomposition products not known. Combustible. Development of hazardous combustion gases or vapours possible in the event of fire. |
| Further information | Prevent fire extinguishing water from contaminating surface water or the ground water system. |
| Advice for firefighters | In the event of fire, wear self-contained breathing apparatus. |
| Personal precautions, protective equipment and emergency procedures | |
| 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 | Prevent further leakage or spillage if safe to do so. Do not let product enter drains. |
|
Methods and materials for containment and cleaning |
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions
(see sections 7 and 10). Take up dry. Dispose of properly. Clean up affected area. Avoid
generation of dusts.
|
| Reference to other sections | For disposal see section 13. |
| Advice of safe handling | For precautions see section 2.2. |
| Storage conditions | Tightly closed. Keep away from heat and sources of ignition. |
| Storage class | For precautions see section 2.2. |
| Specific end use(s) | Apart from the uses mentioned in section 1.2 no other specific uses are stipulated |
| Eye/face protection | Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). |
| Body Protection | protective clothing |
| Skin protection | Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it. Full contact Material: butyl-rubber Minimum layer thickness: 0,3 mm Break through time: 480 min Material tested:Butoject® (KCL 897 / Aldrich Z677647, Size M) Splash contact Material: Chloroprene Minimum layer thickness: 0,6 mm Break through time: 30 min Material tested:Camapren® (KCL 722 / Aldrich Z677493, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374 If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the EC approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario. |
| Respiratory protection |
required when dusts 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.
|
| Control of environmental exposure | Do not let product enter drains. |
| Physical state | Powder |
| Colour | gray |
| Odour | No data available |
| Odor Threshold | Not Applicable |
| pH | No data available |
| Melting Point | Melting point/range: 3.410 °C - lit. |
| Boiling Point | 5.660 °C - lit. |
| Flash Point | Not applicable |
| Evaporation Rate | Not Applicable |
| Flammability (solid, gas) | The product is not flammable. |
| Explosive limits | No Data Available |
| Upper/lower flammability or explosive limits | No data available |
| Autoignition temperature | Self-heating in large quantities; may catch fire. |
| Decomposition temperature | No data available |
| Vapour pressure | No data available |
| Viscosity | No data available |
| Density | 19,3 g/cm3 at 25 °C - lit |
| Relative Density | No data available |
| Partition coefficient | Not applicable for inorganic substances |
| Explosive properties | No data available |
| Solubility | slightly soluble |
| Particle characteristics | No data available |
| Reactivity | The following applies in general to flammable organic substances and mixtures: in correspondingly fine distribution, when whirled up a dust explosion potential may generally be assumed. |
| Chemical stability | The product is chemically stable under standard ambient conditions (room temperature) . |
| Possibility of hazardous reactions | No data available |
| Conditions to avoid | no information available |
| Incompatible materials |
Strong oxidizing agents, Halogens
|
| Hazardous decomposition products | In the event of fire: see section 5 |
| Acute toxicity | LD50 Oral - Rat - male and female - > 2.000 mg/kg (OECD Test Guideline 401) LC50 Inhalation - Rat - male and female - 4 h - > 5,4 mg/l - aerosol (OECD Test Guideline 403) LD50 Dermal - Rat - male and female - > 2.000 mg/kg (OECD Test Guideline 402) |
| Skin corrosion/irritation | Skin - Rabbit Result: No skin irritation - 4 h (OECD Test Guideline 404) |
| Serious eye damage/irritation | Skin - Rabbit Result: No skin irritation - 4 h (OECD Test Guideline 404) |
| Respiratory or skin sensitization | Maximization Test - Guinea pig Result: negative (OECD Test Guideline 406) |
| Carcinogenicity | No data available |
| Germ cell mutagenicity |
Test Type: Mutagenicity (mammal cell test): chromosome aberration. Test system: Chinese hamster ovary cells Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 473 Result: negativeTest Type: In vitro mammalian cell gene mutation test Test system: mouse lymphoma cells Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 476 Result: negative Test Type: Ames test Test system: Escherichia coli/Salmonella typhimurium Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 471 Result: negative Test Type: Micronucleus test Species: Mouse Application Route: Oral Method: OECD Test Guideline 474 Result: negative Remarks: (in analogy to similar products) The value is given in analogy to the following substances: Sodium tungstate |
| Reproductive toxicity | No data available |
| Specific target organ toxicity - single exposure |
No data available
|
| Additional Information | : The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher. |
| Persistence and degradability | No data available |
| Toxicity to fish | Static test LC50 - Oncorhynchus mykiss (rainbow trout) - 75 mg/l - 96 h (OECD Test Guideline 203) |
| Toxicity to daphnia and other aquatic invertebrates | static test EC50 - Daphnia magna (Water flea) - > 163 mg/l - 48 h (OECD Test Guideline 202) Remarks: (in analogy to similar products) |
| Toxicity | Toxicity to fish LC50 - Pimephales promelas (fathead minnow) - 1.520 mg/l - 96 h |
| Toxicity to bacteria | static test EC50 - activated sludge - > 1.000 mg/l - 30 min (OECD Test Guideline 209) |
| Toxicity to algae | static test ErC50 - Pseudokirchneriella subcapitata - 52,9 mg/l - 72 h (OECD Test Guideline 201) |
| 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 | The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher. |
| Other adverse effects | No data available . |
| Waste treatment Method | No data available |
| UN number | ADR/RID:3189 IMDG:3189 IATA: 3189 |
| UN proper shipping name |
ADR/RID : METAL POWDER, SELF-HEATING, N.O.S. (Tungsten powder) IMDG : METAL POWDER, SELF-HEATING, N.O.S. (Tungsten powder) IATA: Metal powder, self-heating, n.o.s. (Tungsten powder) |
| Transport hazard class(es) | ADR/RID: 4.2 IMDG: 4.2 IATA:4.2 |
| Packaging group | ADR/RID: II IMDG: II IATA:II |
| Environmental hazards | ADR/RID: No IMDG: No IATA: No |
| Special precautions for user | Tunnel restriction code : (D/E) |
| Further information | No data available |
| 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. |
