6834-92-0 structure, Na2O3Si

Sodium metasilicate

CAS No.

6834-92-0

Formula:

Na2O3Si

Basic Info

Sodium silicate is the common name for compounds with the formula Na2(SiO2)nO. A well-known member of this series is sodium metasilicate, Na2SiO3. Also known as waterglass or liquid glass, these materials are available in aqueous solution and in solid form. The pure compositions are colourless or white, but commercial samples are often greenish or blue owing to the presence of iron-containing impurities.
They are used in cements, passive fire protection, textile and lumber processing, refractories, and automobiles.

Formula
Na2O3Si
Molecular Weight
122.063
Exact Mass
121.941
LogP
-0.7372
PSA
63.19

Properties

Appearance & Physical State
white granules
Density
2.4 g/cm3
Melting Point
1089ºC

Safety Info

RTECS
VV9275000
Safety Statements
S13-S36/37/39-S45
WGK Germany
1
Risk Statements
R34; R37
HS Code
2839110000
RIDADR
UN 3253
Hazard Class
8
Packing Group
III
Caution Statement
P261; P280; P305 + P351 + P338; P310
Hazard Codes
Hazard Declaration

MSDS

SDS 1.0
expand collapse
Download/Modify | Technical supported by XiXisys.com. For US version, EU version (23 languages) and more, please refer to xixisys.com/en/sds/search

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name Sodium metasilicate

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Processing Aids and Additives
Uses advised against no data available

1.4 Supplier's details

Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone +86(21)64956998
Fax +86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-400-6021-666
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Skin corrosion, Category 1B

Specific target organ toxicity – single exposure, Category 3

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H314 Causes severe skin burns and eye damage

H335 May cause respiratory irritation

Precautionary statement(s)
Prevention

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P264 Wash ... thoroughly after handling.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P271 Use only outdoors or in a well-ventilated area.

Response

P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower].

P363 Wash contaminated clothing before reuse.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P310 Immediately call a POISON CENTER/doctor/…

P321 Specific treatment (see ... on this label).

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P312 Call a POISON CENTER/doctor/…if you feel unwell.

Storage

P405 Store locked up.

P403+P233 Store in a well-ventilated place. Keep container tightly closed.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
Sodium metasilicate Sodium metasilicate 6834-92-0 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.

In case of skin contact

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .

In case of eye contact

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

If swallowed

Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention .

4.2 Most important symptoms/effects, acute and delayed

If large doses are ingested, some irritation of mucous membranes may occur, similar to that caused by caustic soda solution. (USCG, 1999)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

Absorption, Distribution and Excretion

Partly absorbed and excreted in the urine; thus excretion during chronic exposures may contribute to the production of urinary calculi.

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

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)

5.2 Specific hazards arising from the chemical

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)

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered plastic containers. If appropriate, moisten first to prevent dusting. Cautiously neutralize remainder with dilute acid (preferably acetic acid). Then wash away with plenty of water.

6.3 Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Separated from strong acids, food and feedstuffs, metals and halogens. Store in an area having corrosion resistant concrete floor.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. 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 EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state white granules
Colour COLORLESS TO WHITE OR GRAYISH-WHITE, CRYSTAL-LIKE PIECES OR LUMPS
Odour no data available
Melting point/ freezing point 1089ºC
Boiling point or initial boiling point and boiling range no data available
Flammability Not combustible.
Lower and upper explosion limit / flammability limit no data available
Flash point no data available
Auto-ignition temperature Not flammable (USCG, 1999)
Decomposition temperature no data available
pH AQ SOLN ARE STRONGLY ALKALINE
Kinematic viscosity no data available
Solubility VERY SLIGHTLY SOL OR ALMOST INSOL IN COLD WATER; LESS READILY SOL IN LARGE AMT OF WATER THAN IN SMALL AMT; ANHYD DISSOLVE WITH MORE DIFFICULTY THAN HYDRATE IN WATER
Partition coefficient n-octanol/water (log value) no data available
Vapour pressure no data available
Density and/or relative density 2.4 g/cm3
Relative vapour density no data available
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

Flammable solid. /Silicon powder, amorphous/SODIUM SILICATE contains a variable amount of water of hydration. Rate of dissolution depends on the degree of hydration, the amount of water that is used as solvent (less soluble in large amounts of water) and the temperature (higher temperature means quicker solution). Aqueous solutions react as bases. Reacts violently with fluorine [Lewis.]

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

Sodium silicate (water glass) burns in fluorine.

10.6 Hazardous decomposition products

no data available

11.Toxicological information

Acute toxicity

  • Oral: LD50 Rat oral 1.1 - 1.6 g/kg
  • Inhalation: no data available
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

no data available

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

no data available

12.3 Bioaccumulative potential

no data available

12.4 Mobility in soil

no data available

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN3253 IMDG: UN3253 IATA: UN3253

14.2 UN Proper Shipping Name

ADR/RID: DISODIUM TRIOXOSILICATE
IMDG: DISODIUM TRIOXOSILICATE
IATA: DISODIUM TRIOXOSILICATE

14.3 Transport hazard class(es)

ADR/RID: 8 IMDG: 8 IATA: 8

14.4 Packing group, if applicable

ADR/RID: III IMDG: III IATA: III

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
Sodium metasilicate Sodium metasilicate 6834-92-0 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 16, 2017
Revision Date Aug 16, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.
MSDS
expand collapse

Section 1: Product Identification
   Chemical Name:       Sodium metasilicate pentahydrate, 99%    
   CAS Registry Number:       6834-92-0    
   Formula:       Na2SiO3.5H2O    
   EINECS Number:       229-912-9    
   Chemical Family:       metal silicate    
   Synonym:       Disodium metasilicate, Water glass.    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       6834-92-0       100%       no data       no data    

Section 3: Hazards Identification
   Corrosive to skin, eyes, and mucous membranes. May cause coughing, wheezing, shortness of breath,
   Emergency Overview:
   headache, nausea and vomiting. Ingestion may cause damage to the mouth, throat and esophagus.
   Primary Routes of Exposure:       Ingestion, inhalation, skin, eyes.    
   Eye Contact:       Corrosive to eyes.    
   Skin Contact:       Corrosive to skin.    
   Inhalation:       Inhalation may cause inflammation of the respiratory tract, edema and chemical pneumonitis.    
   Ingestion:       Ingestion may cause damage to the mouth, throat and esophagus.    
   Corrosive to skin, eyes and mucous membranes. Inhalation causes coughing, wheezing, shortness of breath,
   Acute Health Affects:
   headache, nausea, and vomiting. Ingestion may cause damage to the mouth throat and esophagus.
   Chronic Health Affects:       Prolonged inhalation of silica dust can produce silicosis with impairment of the cardiopulmonary system.    
   NTP:       No    
   IARC:       No    
   OSHA:       No    

SECTION 4: First Aid Measures
   Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
   Eye Exposure:
   assistance in keeping their eye lids open. Get immediate medical attention.
   Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
   Skin Exposure:
   irritation persists.
   Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
   Inhalation:
   in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
   Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
   Ingestion:
   vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
   Flash Point:       not applicable    
   Autoignition Temperature:       none    
   Explosion Limits:       none    
   Extinguishing Medium:       none required    
   If involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained
   Special Fire Fighting Procedures:
   breathing apparatus and full protective clothing.
   Hazardous Combustion and       None    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

SECTION 6: Accidental Release Measures
   Spill and Leak Procedures:       Small spills can be mixed with powdered sodium carbonate or ground limestone and swept up.    

SECTION 7: Handling and Storage
   Handling and Storage:       Store material in a tightly sealed bottle away from moisture.    

SECTION 8: Exposure Controls and Personal Protection
   Eye Protection:       Always wear approved safety glasses when handling a chemical substance in the laboratory.    
   Skin Protection:       Wear protective clothing and gloves. Consult with glove manufacturer to determine the proper type of glove.    
   Ventilation:       If possible, handle the material in an efficient fume hood.    
   In the absence of adequate ventilation a respirator should be worn. The use of a respiratory requires a
   Respirator:
   Respirator Protection Program to be in compliance with 29 CFR 1910.134.
   Ventilation:       If possible, handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       white pwdr.    
   Molecular Weight:       122.06 (212.14)    
   Melting Point:       40-48°    
   Boiling Point:       no data    
   Vapor Pressure:       no data    
   Specific Gravity:       no data    
   Odor:       none    
   Solubility in Water:       very soluble    

SECTION 10: Stability and Reactivity
   Stability:       air and moisture stable    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       Strong acids    
   Incompatibility:       mineral acids    
   Decomposition Products:       none    

SECTION 11: Toxicological Information
   Administration onto the skin (human); Standard Draize test: 250 mg/24H. Administration onto the skin (rabbit);
   Standard Draize test: 250 mg/24H. Administration onto the skin (guinea pig); Standard Draize test: 250
   RTECS Data:       mg/24H. Oral (rat); LD50: 1153 mg/kg. Oral (mouse); LD50: 770 mg/kg. Oral (dog); LDLo: 250 mg/kg. Oral    
   (pig); LDLo: 250 mg/kg. Intraperitoneal (guinea pig); LDLo: 200 mg/kg. Oral (rat); TDLo: 15 gm/kg.
   Subcutaneous (rat); TDLo: 9766 ug/kg. Intratesticular (rat); TDLo: 9766 ug/kg.
   Carcinogenic Effects:       none    
   Mutagenic Effects:       none    
   Tetratogenic Effects:       reproductive effector    

SECTION 12: Ecological Information
   Ecological Information:       No information available    

SECTION 13: Disposal Considerations
   Disposal:       Dispose of according to local, state and federal regulations.    

SECTION 14: Transportation
   Shipping Name (CFR):       Disodium trioxosilicate    
   Hazard Class (CFR):       8    
   Additional Hazard Class (CFR):       NA    
   Packaging Group (CFR):       III    
   UN ID Number (CFR):       UN# 3253    
   Shipping Name (IATA):       Disodium trioxosilicate    
   Hazard Class (IATA):       8    
   Additional Hazard Class (IATA):       NA    
   Packaging Group (IATA):       III    
   UN ID Number (IATA):       UN# 3253    

SECTION 15: Regulatory Information
   TSCA:       Listed in the TSCA inventory.    
   SARA (Title 313):       Title compound not listed    
   Second Ingredient:       none    


SECTION 16 - ADDITIONAL INFORMATION
N/A

Related Compound Information