BECO-95-035, Requests Approval to Add Corrosion Inhibitor Tolytriazole to Reactor Bldg & Turbine Bldg Closed Cws,Station Heating & EDG CWS

Requests Approval to Add Corrosion Inhibitor Tolytriazole to Reactor Bldg & Turbine Bldg Closed Cws,Station Heating & EDG CWS

ML20084F350
Person / Time
Site:	Pilgrim
Issue date:	05/22/1995
From:	Boulette E BOSTON EDISON CO.
To:	Mcsweeney E ENVIRONMENTAL PROTECTION AGENCY
References
BECO-95-035, BECO-95-35, NUDOCS 9506020161
Download: ML20084F350 (8)

Text

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. s G l Boston Edison l Pdgnm Nuclear Power station Rocky Hdi Road )

Plymouth. Massachusetts 02360 l l

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E. T. Boulette, PhD l Senor %ce Presdent- Nuclear May 22, 1995 j BECo 95 035 i Mr. Edward K. McSweeney i Branch Chief i U. S. Environmental Protection Agency )

Waste Water Compliance Section 1 JFK Federal Bldg l Boston, MA 02203 l l

Dear Mr. McSweeney:

In response to an Institute of Nuclear Power Operations (INPO) recommendation for corrosion control of copper alloys, the Pilgrim Nuclear Power Station (PNPS) is requesting approval to add the corrosion inhibitor Tolytriazole to the reactor building and turbine building closed cooling water systems, station heating and the emergency diesel generator cooling water systems. During system maintenance activities requiring full and/or partial system drain downs, the cooling water from these systems would be directed to our neutralizing sump, (NPDES Permit Discharge Point #011).

Tolytriazole would be discharged from PNPS Discharge Point #011 only during scheduled plant outages, and during any unplanned system maintenance evolutions.

The maximum concentration of Tolytriazole in the neutralizing sump prior to dilution would be 20 mg/L (PPM). The concentration after dilution, prior to discharge to Cape Cod Bay, would be approximately 2.35 PPM with one Salt Service Water pump to just 0.03 PPM with one Circulating Water pump in operation. These concentrations are below the acute and chronic toxicities reported for this chemical.

L Attached are the technical bulletin and material safety data sheets for Cobratec TT S the brand of tolytriazole that would be used. Initial conditioning requires levels of 20 I PPM in the treated systems, but after this concentrations would be maintained at 2 PPM. Tolytriazole is commonly used in these concentrations for copper alloy corrosion control by many industries.

I We would appreciate your written approval for the use of this chemical at PNPS as described above, as soon as possible. Please contact Mr. Robert D. Anderson at (508) 830-7935 should you 1eed further information regarding this matter.

Re ectfull '

9506020161 950522 PDR P ADOCK 05000293 pop .

Boulette, PhD /

ETB/RDA/nas/ Rap 95/PATC #801 cc: See next page l

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4 cc: Mr. Paul Hogan n Mass. Department of Environmental Protection Division of Water Pollution Control Regulatory Branch - 7th Floor l One Winter Street l

Boston, Mass 02108 U.S. Nuclear Regulatory Commission Region i 475 Allendale Road l King of Prussia, PA 19406 l

U.S. Nuclear Regulatory Commission l Attn: Document Control Desk i Washington, DC 20555 Senior Resident inspector I Pilgrim Nuclear Power Station

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COB.RATEC* TT-50-S

/ \_ SODIUM TOLYLTRIAZOLE SOLUTION l

",PMC War', CORROSION INHIBITOR FOR COPPER AND COPPER ALLOYS

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IMPROVES PERrORMANCE OF OTHiiR INHIBITORS FOR OTHEft META 1.S TECHNICAL BUL LETIN 3210 I GENERAL DESCRIPTION DESCRIPTION Chemical Nar7a Tolyttnarole, sod:um satt COBHAT EC' 350-S is a corrosion inhibitor for copper Molecular Wt 155.14 and concer bas, alloys it is very similar toCOBHAikC' TT. Forrnoia C7HsN 3a N 100ia nertorma nce and mechanism of protection. it differs CO TT 50 S Co*

oW in triat it is .sn 80ueous solution of the sodiurn salt of Order Entry Ivo X*8WT7440 tolyttr azole. This cermits f aster make vp of treating CAS Registry No 64665-57-2 solutiv c,throuc s.mple dilution to the desired c>ncentra.

D** PROPERTIES Appearance Clea*, red brown solution COBR ATEC* !1-5Cr5 functions by reacting with copper niide or the su 1 ace of copper of copper alloyn fcrming a Solution Density, strona .nsoluvie polymeric comples. This comoiex l bag al (24*C) 9.85 995

'orrnat.nn resul s in a protective layer or filtn on the copper Crystal Point *C -8.0 ph (10% 80lution) 12 surface a few molecules thick, thet provides both a mecFarical and electrochemicalbattler against corrosive Assay 50%

a'in mr i his orciective layer has a high degree of thermal at ondairve stability and cannot be essity rornoved TOXICITY COBR ATEC* TT-50 6 complexes copper in solution, The acute tom c ty data for TT.50 S are as follows:

therobf prevonting galvanic corrosion of other rnetats. L OwOW G qq WO 640 mg/Kg (Female)

SUGOESTED USEs Can ceuso severe COBRATEC* T*-50-S can be used in most appications Em anct Skin irritar't irritation *

• where COBR ATEC' 99 and COBRATEC* TT-100 are "Due to free caustic content eff ect've Due to e slig htly higher color and odor,cornpared to COBRATEC' 99, at should be tested by the c2Jstorner ,

gg betov ase in any soshcation where procuct acceptance 96 Hr LC60 may ne effected Otherwise functional substitutiors is Bluegill sur fish 1912 mg/L.

Dossible Some sovific uses are.

Circulating Cooling Systems such as cooling Chrer% Twcatr of TT-50 S to Daphnia Mag,1a towers, air cond tioning systems. cu' ting and granding 14 day LC50 13.2 mg/L.

flues.

21 day LC50 5 8 mg/L ru nctional fluido such as hydraulic fi uds, specialty k.b+icents and automotive coolants Corrosion Preventive Coatings such as water base SAFE HANDLING lacavers a, d waxes Owos've solution Store only in containe's resistant to Cleaners such as soaps detergerits and strong afkay caustic soiutions. West proper protective eQulpment for eye and skin protection, Avold contact with skin, eyes and of ac.d cleaners clothing. Adecuate ventilation and other engineering controis sncvid be used to reduce employee exposure METHOUS Or APPLICATION where necessary.

COB R A T EC* 1 T N0 is inceroorated in aqueous solutions at cor cent'atin95 between 0 23% and 4 6% Whern AV AllABIL11 Y COBR ATFC' T' WS replaces COBRATEC* 1T-100.tne Read"y available from stocn in 5 gal, patts and 55 gal.

amount used sNuid t>e increased by a tactor of 2 3. crwrs. Soik quantities are also avai able

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PMC Specialties Grovo 'nc 50t Murray AnEd Cmc nnati. Cho 45217

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COBRATEC*. CORROSION INHTRITORS l COBRATEC8 TF-50S y_ pgP .

rotrirazote COBRATEC' Tr-5CS is an aqccuus sohnion cf de sodfum salt of Tolyltziazole, a cocusion inhibhor for copper and copper base aBoys. COBRATEC* TT-505 forms a bacie: film on the smface of copper, and precipitazes copper frotn solution, charly providing galvanic corrosion pro:ecdos of other mest COBRATECIT-505 na be i. sed in most app!!ca: ions where COBRATEC* 99 and COBRATEC* Tr.100 are effeedve.

FIELDS OF APPLICATION: GENERAL DESCRIPT70N:

• Circulating Coolimr Systerns Chernics! Name: Tolyltrir. zole, sodian sair Such as cooling towm. air conditiom:g systems, Synonyms: Sodzuzn Tolytninnie curdng and grm.*g Haids. 50% Water Solution CASH 65665-57-2 MoletLu Wt.: 155.14

+ Mtional Fliddy Forma C,Wa Sod as hydraclie culds, special:y luhricarts and AEP * *"C" C'" # * "' uber widon Cr3stal Point, 'C: -8.0 moda alacts.

SPECIFICATIONS;

+ Cpgo.sion Prevendve Coadnn IbJgal(2cC): 9.M 9.95 pH: 11.5 - 12.0 Assay: 40.5 - 51.0 %

• MM Color, Gantnel: ' 10 max Sbch as scaps. deterEents and s::eng alkall or acid Ch 100 y a cl***"-

NaOH: 0.5% max MED.IOQ_OF APPIJCATIONS:

00 BRA fi'C' TT 50s is incorporated in aqueous schsfons at conmatrat:ons betwecn 0.23 % and 4.6 %. Whee CUHRAIT-C* TT-505 repla::es COBRATEC* TT-100, the amcrm: e.v 1 stvndd be increased by a facter of 2.3.

AVAll cAMILITY: -

INFORMAHON WINDO1Y CODRA TEC* TT-50S is readfly avaiMle Dom s:ock in 5 galloc pails EQ$ghTDR R u 4318

.g aad 35 gallan druzns. Alterna:e package sizes am be provided if AIDS TO FORMUI.ATION APP f. 3005 Itydml. CdB Customer Service for mDIt product informadan. DrDUST1UAL USE GUIDE APP t'. 3010 Orttas Last A H5WT7680 DIREC*T TalEMIDff APP A 1031 Techncal Rdeten A CORAlls

' 17 APR1 M CUSTOMER SETMCE/Or4Dm ENTTW.

800/228 3873: 800/227 2442: 80W543 2466 OR FAX P1tV355-7787 ace 2s c.eer mdne soad riocs

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• G813 433 7377 RJ ADY.OfTiGE 9002 MATERJAL SAPETY DATA SBEET COBRA 2EC* Tr-50S ,

SECITMil .

MANUFACTURER: PMC SPECIALTIES GROUP,INC. -

ADDRESS: 501 Murray Road Cincinnati, OH 45217 EMERGENCYTELEPHONE: (513) 242-3300 POR.'IRANSPORTATION EMERGENCY: (800) 424 9300 CHEMICAL NAME AND SYNONYMS. Sodium Tolyitriazole, 50% Water Solution TRADE NAMES AND SYNONYMS. COBRATEC* TT-50S CIIEMICAL FAMILY: Triazole FORMUIA: C7H.N3Na DOT SHIPPING DESCRIPTION: Caustic alkali liquids, n.o.s.

(sodann hythodde),8, LW1719, PGII PRODUCr NUMBER: X18WI7440

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NFPA BASED RATING: Health: 3, P1====hility: 0, ReactMay: 0 BMIS RATINGS: ITealth 3, FIm===hility: 0, Rendi .i O, PPE: F SECTION_U INGFurwNIs l

Material CAS Na wt % Expomm_ Limits l

Sodium Tolyltriazole 64665-57-2 49 5-5LO None Established Water 7732-18-5 48.5-50.0 None Established l Sodium Hydroxide 1310-73-2 < 0.5 TWA=2mg/m' ,

SECITONIR PHYSICALDATA BOILING FOINr: 100* C FRFF11NG POIN'D -8* C SPECIFIC GRAVITY: L19 @ 25' C VAPOR PRESSURE AT 20' C: 0.04 mm Hg VAPOR DENSnY: Not Applicable SOLUBILITY IN WA'ER: Miscible in all proportions

% VOIA'HLES BY VOLUME: 50% as water EVAPORAIION RATE: Not Applicable (Butyl Acetate = 1)

APPEARANCE AND ODOR: Clear yellow to amber solution, characteristic odor, pH=13.5 mws a

• 04 /19 e 98 16:33 C 813 442 7377 RJ ADVANTAGE @ 003

.e MSDS COBRATEC' TT-SOS amor

' Page 2 SECI10N IV FIRE AND EXPIDSION HAZARD DATA FLASH POINT: Not Applicable AUIDIGNITION TEMPERATURE: Not Applicable FLAMMABLE UMTIS IN AIR: Not Applicable '

EXTINGUISIIING MEDIA: Not Applicable SPECIAL FIRE FIGHT 7NG PROCEDURES. Full protective equipment including self.

contained breathing apparatus should be used when COBRATEC' TT-50S is present during a fire. During emergency conditions overexposure to decomposition products may cause  ;

a health hazard. Symptams may not be immediately apparent. Get medical attenti:rn.

UNUSUAL FIRE AND EXPLOSION, HAZARDS: Closed containers may rupture or explode due to steam pressure build-up when exposed to extn me L-at. Water maybe used to cool closed containers.

SECITON V FRAL'IH HA7ARD_ DATA EFFECTS OF OVEREXPOSURE: Cormsive. Prolonged contact can be destructive to tissue. Contact with the eyes may severely damage delicate eye tisme.

EMERGENCY AND FIRST AID PROCEDURES: IF ON SKIN. Wash affected area thoroughly with soap and water. Remove cont =rnin=ted clothing, rings, etc. IF IN EYES:

Flush eyes with large amounts of water for 15 minutes. Get medical attention. IF SWAILOWED: Never give anything by month to an unconscious person. DO NOT INDUCE VOMTIING. Give large amounts of water. Get medical attention. IF INHALED: If affected, remove from exposure. Restore breathing. Keep warm and quiet.

Get medical attention. .

TOXICITY DATA:

Oral LD33 (rat) 920 mg/kg (Male) 640 mg/kg (Female)

Eye and Skin Irritant Can cause severe irritation (due to free caustic content).

SiCITON VI REACIIV_ITY DATA 4

STAT 1TLITY: Stable INCOMPATIBIIJIY: Strong @Mng Agents, Strong Acids.

IIAZARDOUS DECOMPOSTITON PRODUCTS: BY FIRE: Carbon Dioxide, Carbon Monexide, Nitrogen oxides, HCN possibic in reducing atmospheres.

HA7ARDOUS POLY?RRIZATION: WIII Not occur 1

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. Page 3 Srfl10N VILSPH1 OR LEALEROCEDURES YnIPS TO BE TAKEN IN CASE THE MATERIAL Ib Spir IEn OR RET FASED: Pick up sp " on suitable absorbent statarial. Flash sp01 area with water.

WASTE DISPOSAL MiinIOD: Sanitary landfin or incinerate in approved fueSities in accordance with local, state, and federal regn!ations. Do not heat or incinerate in closed containers.

SECIlON VIH SPECIAL PROTECTIVE INFORMATION RESPIRATORY PROTECTION: If personal exposure cannot be contro!!ed below applicable exposure limits by vennlation, wear respiratory devices approved by N10SII/MSIIA for protection against organic vapors, dust, fumes and mists.

VENTILATION: Local exhaust is recommended.

PROTECTIVE GIDVES: Necessary to avoid skin contact. -

EYE PROTECHON: Use safety glasses with unperforated side shields, or full face shield when danger of spMhing is great.

OTHER PROTECTIVE EQUll' MENT: Rubber apron or simihr protectrve clothing to prevent contact with skin or clothes.

SECITO_N IX SPECIAL PRECAUTIONS CORROSIVE MATERIAL Avoid contact with skin, eyes, and clothing. DO NOTTAKE INTERNALLY. Clean up spills immediately.

PRECAUTIONS TO BE TAKEN IN ITANDLING AND STORAGE: Keep containers tightly closed when not in use. Store only in containers which are resistant to caustic solutions.

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. . .w 15DS COBRA 2BC*TT-SOS a==

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. SECITONX REGUIAIORYSTA*IUS Tolyhrfazole (CAS #29385-43-1) is eco_tained on the followine chemical lists:

1. TSCA Section 8(ay40CFR 712 Prelimiury Assessment Information Rule;

2. TSCA Section 8(d) Health and Safsty Data Rnla.

Sodium HydrazidtLCAS No. 1310-73-2) is an=+=i=U on the followin chem _ical lists:

1. . Clean Water Act Section 311 Hazardous Substances;

2. NIOSH Recommendation Substances;

3. Comprehensive Environmental. Response, Compensation, and Liability Act (CERCLA) Hazardous Sabaran=;

4. OSHA Air Contam'mants;

5. American Council of Covernmental Industrial Hygienists (ACGIH) Threshold Unut Value Cheminak;

6. DOT Hazardous Materials;

7. DOT Hazardous Substances Other Than Radionuclides; and Radionuclides;

8. Massachusetts Substance List; ,

9. New Jersey Right To Know Hamdous Substance Ust; '

10. Pennsylvania Hazardous Substance List;

11. WHMIS Ingredient Dischre Ust.  !

PREPARED: February 23,1995 SUPERSEDES: July 14,1994 l

De information contained herein is based on the data available to us and is helarved to be correct as of the date pepami; however, PMC SPECIAUITES GROUP,INC inakes ao warranty, espessed or %;ied regardag the amaracy of these data or the rascht to be obeamed from the aus thereof.

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