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Carboxymethyl Hydroxypropyl Guar or CMHPG Gum SDS Safety Data Sheet of Supplier Exporter Manufacturers' Representative |
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Carboxymethyl Hydroxypropyl Guar or CMHPG Gum
CAS Number: 68130-15-4
Carboxymethyl Hydroxypropyl Guar or CMHPG Gum
CMHPG or Carboxymethyl Hydroxypropyl Guar SDS or Safety Data Sheet
Material Safety Data Sheet 02-Jan-24
1. Product Identification
Product Name & Other Names: Gum guar, carboxymethyl 2-hydroxypropyl ether, sodium salt or Carboxymethyl hydroxypropyl guar or galactasol carboxymethyl hydroxypropyl guar (CMHPG) or gum guar, carboxymethyl 2-hydroxypropyl ether, sodium salt or sodium carboxylmethyl(hydroxypropyl)guar
CAS No.: 68130-15-4
Relevant uses and uses advised against (if any): Industrial use only.
Supplier: As per letterhead.
2. Hazards Identification
GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008
Acute toxicity, oral Category 5 - H303
Skin corrosion/irritation Category 2 - H315
Serious eye damage/eye irritation Category 2A - H319
Sensitization, respiratory Category 1 - H334
Specific target organ toxicity, single exposure; Respiratory tract irritation Category 3 - H335
Labeling according to GHS & Regulation (EC) No 1272/2008
GHS Label Elements  Irritant |
GHS Label Elements |
Signal Word: Danger
Hazard statement(s)
H303-May be harmful if swallowed
H315-Causes skin irritation.
H319 -Causes serious eye irritation.
H334-May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H335-May cause respiratory irritation
Precautionary statements Prevention
P261: Avoid breathing dust/fumes.
P271: Use only outdoors or in a well-ventilated area.
P285: In case of inadequate ventilation wear respiratory protection.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Precautionary statements Response
P304+341: IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P312: Call a POISON CENTER/doctor/physician/first aider/if you feel unwell.
P342+P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor/physician/first aider.
P305+P351+P338- IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P302+P352: IF ON SKIN: Wash with plenty of water and soap.
P332+P313: If skin irritation occurs: Get medical advice/attention.
P362+P364: Take off contaminated clothing and wash it before reuse.
Precautionary statements Storage
P405: Store locked up.
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
Precautionary statement(s) Disposal
P501 Dispose of contents/container in accordance with local regulations.
3. Composition/Information on Ingredients
Product Name & Other Names: Gum guar, carboxymethyl 2-hydroxypropyl ether, sodium salt or Carboxymethyl hydroxypropyl guar or galactasol carboxymethyl hydroxypropyl guar (CMHPG) or gum guar, carboxymethyl 2-hydroxypropyl ether, sodium salt or sodium carboxylmethyl(hydroxypropyl)guar.
CAS No.: 68130-15-4
% by Weight: >98%
4. First Aid Measures
Always seek medical attention after first aid measures are provided.
Eye Contact: Wash out immediately with fresh running water. Ensure complete irrigation of the eye by keeping eyelids apart and away from eye and moving the eyelids by occasionally lifting the upper and lower lids. Seek medical attention without delay; if pain persists or recurs seek medical attention. Removal of contact lenses after an eye injury should only be undertaken by skilled personnel.
Skin Contact: Immediately remove all contaminated clothing, including footwear. Flush skin and hair with running water (and soap if available). Seek medical attention in event of irritation.
Inhalation: Lay patient down. Keep warm and rested. Prostheses such as false teeth, which may block airway, should be removed, where possible, prior to initiating first aid procedures. Apply artificial respiration if not breathing, preferably with a demand valve resuscitator, bag-valve mask device, or pocket mask as trained. Perform CPR if necessary. Transport to hospital, or doctor, without delay.
Ingestion: If swallowed do NOT induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain open airway and prevent aspiration. Observe the patient carefully. Never give liquid to a person showing signs of being sleepy or with reduced awareness i.e. becoming unconscious. Give water to rinse out mouth, then provide liquid slowly and as much as casualty can comfortably drink. Seek medical advice.
5. Fire Fighting Measures
Extinguishing media: Water spray or fog, Foam, Dry chemical powder, BCF (where regulations permit), Carbon dioxide. Solid water jet may be avoided as it can scatter the fire.
Special hazards arising from the substrate or mixture: Avoid contamination with oxidizing agents i.e. nitrates, oxidizing acids, chlorine bleaches, pool chlorine etc. as ignition may result.
Fire Fighting: Alert Fire Brigade and tell them location and nature of hazard. Wear breathing apparatus plus protective gloves. Use water delivered as a fine spray to control fire and cool adjacent area. DO NOT approach containers suspected to be hot. Cool fire exposed containers with water spray from a protected location. If safe to do so, remove containers from path of fire. Equipment should be thoroughly decontaminated after use.
Fire/Explosion Hazard: Combustible solid which burns but propagates flame with difficulty; it is estimated that most organic dusts are combustible (circa 70%) - according to the circumstances under which the combustion process occurs, such materials may cause fires and / or dust explosions. Organic powders when finely divided over a range of concentrations regardless of particulate size or shape and suspended in air or some other oxidizing medium may form explosive dust-air mixtures and result in a fire or dust explosion (including secondary explosions). Avoid generating dust, particularly clouds of dust in a confined or unventilated space as dusts may form an explosive mixture with air, and any source of ignition, i.e. flame or spark, will cause fire or explosion. Dust clouds generated by the fine grinding of the solid are a particular hazard; accumulations of fine dust (420 micron or less) may burn rapidly and fiercely if ignited - particles exceeding this limit will generally not form flammable dust clouds; once initiated, however, larger particles up to 1400 microns diameter will contribute to the propagation of an explosion.
Build-up of electrostatic charge may be prevented by bonding and grounding.
Powder handling equipment such as dust collectors, dryers and mills may require additional protection measures such as explosion venting.
All movable parts coming in contact with this material should have a speed of less than 1-meter/sec.
A sudden release of statically charged materials from storage or process equipment, particularly at elevated temperatures and/ or pressure, may result in ignition especially in the absence of an apparent ignition source.
Combustion products include: carbon monoxide (CO), carbon dioxide (CO2). May emit poisonous and corrosive fumes.
6. Accidental Release Measures
Personal precautions, protective equipment, and emergency procedures: Avoid breathing dust/fumes/gas/mist/vapors/spray. Ensure adequate ventilation. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.).
Environmental precautions: Do not let the product enter drains, soil, or water sources.
Methods and materials used for containment Cleanup procedures and Storage:
Minor Spills: Remove all ignition sources. Clean up all spills immediately. Avoid contact with skin and eyes. Control personal contact with the substance, by using protective equipment. Use dry clean up procedures and avoid generating dust. Place in a suitable, labeled container for waste disposal.
Major Spills: Alert Emergency Services and tell them location and nature of hazard. Control personal contact by wearing protective clothing. Recover product wherever possible. Contain spilled material. Cover with an inert, non-combustible absorbent material, (e.g. sand, earth, diatomaceous earth, vermiculite).
IF DRY: Use dry clean up procedures and avoid generating dust. Collect residues and place in sealed plastic bags or other containers for disposal.
IF WET: Vacuum/shovel up and place in labelled containers for disposal.
ALWAYS: Wash area down with large amounts of water and prevent runoff into drains.
7. Handling and Storage
Precautions for safe handling:
Avoid all personal contact, including inhalation.
Wear protective clothing when risk of exposure occurs.
Use in a well-ventilated area.
DO NOT enter confined spaces until atmosphere has been checked.
DO NOT allow material to contact humans, exposed food or food utensils.
Avoid contact with incompatible materials.
When handling, DO NOT eat, drink or smoke.
Keep containers securely sealed when not in use.
Always wash hands with soap and water after handling.
Use good occupational work practice.
Atmosphere should be regularly checked against established exposure standards to ensure safe working conditions are maintained.
Organic powders when finely divided over a range of concentrations regardless of particulate size or shape and suspended in air or some other oxidizing medium may form explosive dust-air mixtures and result in a fire or dust explosion (including secondary explosions)
Minimize airborne dust and eliminate all ignition sources. Keep away from heat, hot surfaces, sparks, and flame.
Remove dust accumulations on a regular basis by vacuuming or gentle sweeping to avoid creating dust clouds.
Use continuous suction at points of dust generation to capture and minimize the accumulation of dusts. Particular attention should be given to overhead and hidden horizontal surfaces to minimize the probability of a "secondary" explosion. According to NFPA Standard 654, dust layers 1/32 in.(0.8 mm) thick can be sufficient to warrant immediate cleaning of the area.
Do not use air hoses for cleaning.
Minimize dry sweeping to avoid generation of dust clouds. Vacuum dust-accumulating surfaces and remove to a chemical disposal area. Vacuums with explosion-proof motors should be used.
Control sources of static electricity. Dusts or their packages may accumulate static charges, and static discharge can be a source of ignition.
Solids handling systems must be designed in accordance with applicable standards (e.g. NFPA including 654 and 77) and other national guidance.
Do not empty directly into flammable solvents or in the presence of flammable vapors.
The operator, the packaging container and all equipment must be grounded with electrical bonding and grounding systems. Plastic bags and plastics cannot be grounded, and antistatic bags do not completely protect against development of static charges.
Empty containers may contain residual dust which has the potential to accumulate following settling. Such dusts may explode in the presence of an appropriate ignition source.
Do NOT cut, drill, grind or weld such containers.
Other information: Store in original containers. Keep containers securely sealed. Store in a cool, dry area protected from environmental extremes. Store away from incompatible materials and foodstuff containers. Protect containers against physical damage and check regularly for leaks.
For major quantities: Consider storage in bonded areas - ensure storage areas are isolated from sources of community water (including storm-water, ground water, lakes and streams}.
Suitable container: Polyethylene or polypropylene container. Check all containers are clearly labeled and free from leaks.
Storage incompatibility: Dilute solutions of all sugars are subject to fermentation, either by yeast or by other microorganisms or enzymes derived from these, producing gases which can pressurize and burst sealed containers.
8. Exposure Controls/Personal Protection
Occupational Exposure Limits (Oel): Not Available
Appropriate engineering 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:
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. Local exhaust ventilation is required where solids are handled as powders or crystals; even when particulates are relatively large, a certain proportion will be powdered by mutual friction. Exhaust ventilation should be designed to prevent accumulation and recirculation of particulates in the workplace.
If despite local exhaust an adverse concentration of the substance in air could occur, respiratory protection should be considered. Such protection might consist of:
(a): particle dust respirators, if necessary, combined with an absorption cartridge;
(b): filter respirators with absorption cartridge or canister of the right type;
(c): fresh-air hoods or masks
Build-up of electrostatic charge on the dust particle, may be prevented by bonding and grounding.
Powder handling equipment such as dust collectors, dryers and mills may require additional protection measures such as explosion venting.
Air contaminants generated in the workplace possess varying "escape" velocities which, in turn, determine the "capture velocities" of fresh circulating air required to efficiently remove the contaminant.
| Type of Contaminant: | Air Speed: |
direct spray, spray painting in shallow booths, drum filling, conveyer loading, crusher dusts, gas discharge (active generation into zone of rapid air motion) |
1-2.5 m/s (200-500 f/min.) |
grinding, abrasive blasting, tumbling, high speed wheel generated dusts (released at high initial velocity into zone of very high rapid air motion). |
2.5-10 m/s (500-2000 f/min.) |
The air velocity at the extraction fan, for example, should be a minimum of 4-10 m/s (800-2000 f/min) for extraction of crusher dusts generated 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
Eye and face protection:
Safety glasses with side shields.
Chemical goggles.
Contact lenses may pose a special hazard; soft contact lenses may absorb and concentrate irritants. A written policy document, describing the wearing of lenses or restrictions on use, should be created for each workplace or task. This should include a review of lens absorption and adsorption for the class of chemicals in use and an account of injury experience. Medical and first-aid personnel should be trained in their removal and suitable equipment should be readily available. In the event of chemical exposure, begin eye irrigation immediately and remove contact lens as soon as practicable. Lens should be removed at the first signs of eye redness or irritation - lens should be removed in a clean environment only after workers have washed hands.
Hands/feet protection:
The exact break through time for substances has to be obtained from the manufacturer of the protective gloves and has to be observed when making a final choice.
Personal hygiene is a key element of effective hand care. Gloves must only be worn on clean hands. After using gloves, hands should be washed and dried thoroughly. Application of a non-perfumed moisturizer is recommended.
Select gloves tested to a relevant standard (e.g. Europe EN 374, US F739, AS/NZS 2161.1 or national equivalent).
When prolonged or frequently repeated contact may occur, a glove with a protection class of 5 or higher (breakthrough time greater than 240 minutes according to EN 374, AS/NZS 2161.10.1 or national equivalent) is recommended.
When only brief contact is expected, a glove with a protection class of 3 or higher (breakthrough time greater than 60 minutes according to EN 374, AS/NZS 2161.10.1 or national equivalent) is recommended.
For general applications, gloves with a thickness typically greater than 0.35 mm, are recommended.
Other protection: P.V.C. apron. Barrier cream. Skin cleansing cream. Eye wash unit.
Respiratory protection:
Respirators may be necessary when engineering and administrative controls do not adequately prevent exposures. The decision to use respiratory protection should be based on professional judgment that takes into account toxicity information, exposure measurement data, and frequency and likelihood of the worker's exposure - ensure users are not subject to high thermal loads which may result in heat stress or distress due to personal protective equipment (powered, positive flow, full face apparatus may be an option).
9. Physical and Chemical Properties
Appearance: Divided solid; mixes with water. Easily soluble in cold temperature environments. Soluble in petroleum distillate. Produces high viscosity solutions . Exhibits good compatibility with aqueous solutions of salts and organic compounds, rapid hydration and compatible with organic solvents.
Odor: No information found.
Odor threshold: No information found.
pH: 9-11
Relative density: 1.3
Melting point / freezing point (°C): 246 (decomposes)
Initial boiling point and boiling range: No information found.
Flash point: No information found.
Auto-ignition temperature: No information found.
Decomposition temperature: No information found.
Upper/lower flammability or explosive limits: No information found.
Vapor pressure: No information found.
Vapor density: No information found.
Evaporation rate: No information found.
Flammability (solid, gas): No information found.
Partition coefficient: n-octanol/water: No information found.
Solubility in water (g/L): Soluble
Viscosity (cSt): 35 poise
10. Stability and Reactivity
Chemical stability:
Product is considered stable.
Unstable in the presence of incompatible materials.
Hazardous polymerization will not occur.
Conditions to avoid- See section 7
Incompatible materials- See section 7.
11. Toxicological Information
Toxicity to Animals: No information found.
Mutagenicity: No information found.
Carcinogenicity: No information found.
Teratogenic Effects: No information found.
Mutagenic Effects: No information found.
Developmental Toxicity: No information found.
Reproductive Effects: No information found.
12. Ecological Information
Toxicity: Surfactants are in general toxic to aquatic organisms due to their surface-active properties. DO NOT discharge into sewer or waterways.
Persistence - Water/Soil: No information found.
Persistence - Air: No information found.
Bioaccumulation: No information found.
Mobility in soil: No information found.
13. Disposal Considerations
Containers may still present a chemical hazard/ danger when empty. Return to supplier for reuse/ recycling if possible. If container cannot be cleaned sufficiently well to ensure that residuals do not remain or if the container cannot be used to store the same product, then puncture containers, to prevent re-use, and bury at an authorized landfill. Follow all the pollution control rules.
14. Transport Information
Marine Pollutant: No
DOT USA ADR/RID Europe: Not dangerous goods.
IMDG: Not dangerous goods.
IATA: Not dangerous goods.
15. Regulatory Information
USA - TSCA: listed
16. Other Information
Disclaimer:
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Our company provides this MSDS sheet in good faith but makes no representation as to its comprehensiveness or accuracy. This SDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. The above information has been compiled from various sources and has the possibility of discrepancy and being out-dated information. Individuals receiving the information must exercise their independent judgment and do further search in determining its appropriateness for a particular purpose. In no case shall our company be liable to loss or damages by the product user.
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